MIL-F-29248.pdf

ltIL-F-29248(YU) 21 November 1986

MILITARY SPECIFICATION

FEUDERS , MARINE, FOAM FILLED, UETLESS

This specification is approved for use by the Naval Facilities “ Engineering Command, Department of the Navy, and is available for use by all Department and Agencies of the Department of Defense.

1. SCOPE

1.1 ~. This specificationcovers a high energy absorption elastomeric marine fender system to be used for protection of ships, harbor craft, wherves. and piers from damage between the interface of vessel to vessel or vessel to pier.

2. APPLICABLE DDCUMSUTS

2.1 Government documents.

2.1.1 Suecifications, standards. and handbooks. The following specifications,standards, and handbooks form a part Of this Specificationto the extant specified harein. Unlass otherwise apacifiad, the issues of these documents shall be those 1isted in the issue of the Department of Defarise Index of Soecifications and Standards (DODISS) and supplement thereto, cited--in the solicitation.

SPECIFICATIONS

liILIARY

HIL-C-3774 -

MIL-I-45208 -

STANDARD

MILITARY

HIL-S’20-129-

Crate, Uood, Open, 12,000 and 16,000 Poun4 Capacity.

Inspection System Requirements.

Marking for shipment ~d StOrage.

IBeneficial comments (reconunendations,additiona. deletions) and any pertinentI Idata which may be of use in improving this document should be addreseed to: I lCoasuendingOfficer (Code 156), Uaval Constwction Battalion Center, POrt I l~eneme, CA 93043, by using the self-addressedStandardizationDocument IImprovementProposal (DD Form 1426) eppearing at the emd of this document or ~ Iby letter.

AUSC tl/A IFSC 20401

DISTRIBUTION STATEKRUT A. Approved for public release; distribution is unlimited.

HIL-F-29248(YD)

(Copies of specifications’, standsrds, publications, and other Government documents required by contractors in connectionwith specific acquisition functions should be obtsined from the contracting sctivity or as directed by the contracting activity. )

2.2 Other uublicetions. The following document(s) fomo a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the issues of the documents not listed in the DDDISS shall be the issue of the non-Governmentdocuments which is current on the date of the solicitation.

AMSRICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

A36 - Steel, Structural.

A123 - Zinc (Hot Galvanized) Coatings on Products Fabricated From

Rolled, Pressed, and Forged Shapes, Bars, and Strips.

A153 - Zinc Coating (Hot Dip) on Iron and Steel Hardware.

D395 - Rubber Property in Compression,Test for.

D412 - Rubber Properties in Tension, Teat Methods for.

D470 - Thermosettins Insulated and Jacketed Wire and Cable.

D624 - Rubber Property Tear Resistance, Test for.

D750 - Rubber Deterioration in Carbon Arc or Iieatherometer,Recormnended

Practice for: (Atlaa Ueatherometar fiodel2W With Filters and Curved Racks).

D1052 - Measuring Rubber Deterioration,IIethodfor (Cut Growth Using Ross Flexing Apparatus).

D1056 - Flexible Cellular Material SponSe or Expanded Rubber, Specification for.

D1564 - Flexible Cellular Materials Sponge or Expanded Rubber, Standard Method of Testing.

D1630 - Rubber Property Abrasion Resistance, Test for (UBS Abrader).

D1667 - Flexible Cellular Materials - Vinyl Chloride Polymers and

Copolymers (Closed Cell Vinyl).

D2240 - Rubber Property Durometer Hardness, Test for.

(Applicationfor copies should be addreased to the American Society for Testing and Materiala, 1916 Race Street, Philadelphia,PA 19103.)

(iJon-Governmentstandards and other publications ara noxmelly available from the organizationswhich prepare or which distribute the documents. These docUMent6 also may be available in or through libraries or other informational services.)

2.3 @der of Precedence. In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications,specificationsheets or lfsstendarda), the text of this specification shall take precedence. Mothing in this specification,ho~ver, shall supersede applicable laws and refiulationsunless a specific exemption has been obtained.

I

I HIL-F-29248(YD)

3. REQUIREMENTS

3.1 Standard commercial uroduct. The fendersshall,as a minimum,be in accordancewith the requirsmentaof thisspecificationand shallbe the manufacturers’sstandardcommercialproduct. Additionalor betterfeatures which are not specificallyprohibited by this specificationbut which are-a part of the msnufecturer’s standard commercial product, shall be included in the fendars being furnished. A standard commercialproduct is a product which has been sold or is being currently offered for sale on the commercialmarket through advertiaamentsor manufacturer’s catalogs, or brochures, and representa the latest production model.

3.2 Firat article. When specified (see 6.2.1), the cOntractOr shall furnish one completa fender of each classificationincluded in the contract as a sample for firat article inspection and approvaI (see 4.2.1 and 6.4).

3.3 DrawinKa. The contractor is reaponsible for preparing his own ahop drawings. Where tolerances prescribed may cumulatively result in incorrect fits, the contractor shall provida toleranceswithin those prescribed herein to insure correct fit, assembly, and operations of the items. No deviation from.the prescribed dimensions or tolerance ia permissible without prior apProval of the contracting officer.

3.4 Haterials. l!aterialsused shall be free from defects which would adveraely affect the performance or maintainability of individual components e or of the ovarall assembly. !faterialsnot specified herein shall be of the same quality usad for the intended purpose in commercial practice. Unless otherwise apecified herein, all equipmant, material, and articles incorporated in the work covered by this specification are to be new and fabricatedusing materiala produced from recovared materials to the maximum extent possible without jeopardizing the intended use. The term ““recoveredmaterials” means materials which have been collected or recovered from solid waste and reprocessed to become a source of raw materials, as opposed to virgin raw materials. None of the above shall be’interpretedto maan that the use of used or rebuilt products are allowed under this specificationunless otherwiaa apecified.

.3.4.1 Closed cell foam. The fender cushion shall be completely filled with a closed cell crosslinkedpolyethylene plastic foam of the characteristics listed in Table 1. -

3.4.2 Elaatomer (urethane) shell. The elastomer shell anr.asingthe fender cushion shall be poly-tetra-methylene glYCOl (-G) polyether urethsne elastomer, formulated to inhibit ultraviolet degradation,black in color and of the characteristic listed in Table 11. In manufacturing the poIyether urethane elastomer, 100 percent of the polyol used shall be PTMSG.

3.4.3 ~. Steel for and fittings shall conform to ASTM A36.

XIL-F-29248(YD)

3.5 w. The fender shall be designed as described herein.

3.5.1 General confis.uration. The fender shall have a cylindricalmid-body (that portion of the fender with a constant diameter) with conical or curved ends terminating in an end fitting located on the cylinders centerline. Size Of ‘fendershall be as described in 3.5.2. .

TAELE 1. Closed cell foam.

I “1

I 1.

Density

(ASTM D1667)

Tensile Strength (ASTW D1564 or D412)

Elongation (ultimate) @STII D1564 or D412)

Continuous Service Temperature Uater Absorption (after 24-hour immersion) (ASTW 1667)

Tear Resistance

(ASTW D624)

25 Percent Compressive Resistance (ASTM D1667 or D1056)

50 Parcent Compressive Resistance (ASTW D1667 or D1056)

25 Percent Compressive Set (ASTW D395 or D1667)

1.5 - 4.5 lb/cu ft I I

35 lb/sq in (psi), minimum I I

150 percent, minimum percent to breakI

I -65 F to +175 F, minimum range I

0.07 lblaq ft of cut surface, maximuml

7 lb.in., minimum /

6 - 22 psi minimum

I 14 - 35 psi minimum I

13.percent maximum /

TAELE II. Urethane elastomer comoorientof shell.

I a. Shore “A” Durometer Hardness 85-92 I i e.

I I ~ f.

I I s.

I I I_

(ASTW D2240)

Tensile Strength 2,500 psi minimum /

(ASTW D412, 14ethodA, Section 11-14) I Elongation (ultimate) 500 percent miniwm

(ASTM D412, Method A, Section 11-14) ~ Tear Strength (ASTW D470, Section ? .6) 100 lb/in.

Flex Cut Growth (Ross, flexes to 5 X 10,000 flexes minimum I cut growth, ASTW 1052)

Abrasion Resistance 67BS 12S minimum 1 Abrader (A3TW D1630) I

WsstherometerAging - 500 hours Minimum 60 percent retention I (ASTW D750) of original ‘values of I specification items (a) through (d) above / llIL-F-29248(YD)

3.5.2 Dimensions. The mid-body diameter, overall length, mid-body length, and skin thickness shall be as svecified (see 6.2.1). Dimensions sre given in Table III. The mid-body dismete~, mid-body length, and overall length-dimensions shall have a tolerance of t 1 inch. The skin thickness values are given as a minimum. The fender length is measured from eye to eye of the end fittinga.

TABLE III. Fender dimensions.

1 lfinimum F!inimum Hinimum End IDiameter Overall Length Hid-Body,Length Skin Thickness Fitting Shackle Size I I ( ) L(ft) (ft) (in) (in) I :t 6,8,10,12 L-2 .1 7/8 3(4,3/4,718,7/8 ~

8,10,12 L-3 .0 1.0 1,1,1 ;: 10,14,16 L-3 .5 1-1/4 1,1-1/4,1-1/4 I [6 12,14,16,18,20 L-4.6 1-1/4 1-1/4,1-1/4,1-3/8, I

1-3/8,1-1/2

/7 14,16 L-5 .1 1-1/4 1-3/8 ,1-1/2 i [8 14,16,18 L-5 .7 1-1/2 . 1-1/2,1-1/2,1-3/4 I

19 18,20 L-6 .6 1-1/2 1-3/4 ,2 I 10 18,20 L-7.1 1-5/8 ‘2,2 i

3.5.3 Repairability. The fender casing shall be repairable in the event of tears or punctures in the urethane shel1. The repaired erea shall have not less than 90 percent of the properties as apecified in 3.4.2. Required repair materials shall be readily available from the fender manufacturer.

3.6 Construction. The fender shal1 be msnufactured with a fabricatedcore of closed cell foam (ace 3.4.1), encased in an elaatOmer shell (see 3.4.2).

The fender shall have no exterior net or solid (non-compressible)interior longitudinal strength member connecting the fender end fittings.

3.6.1 Fender skin constmction. The contractor shall certify that any seam of the fender is produced in such a’manner as to assure a continuous homogeneous skin, with joint strength equal to that of the rest of the fender shell. Up to 15 filament reinforcing wraps of nylon tire cord may be used at the contractor’s option. If filament wraps are used they shall be evenly distributed and the elastomer shall be”.applied in a continuous manner to assure adhesion between the varioua layera.

3.6.2 End fittings. The end fittings shall be connected by a cbein end shell terminate in a clevis fitting sized for the shackle size aa specified in

3.5.2 and Table III. The clevis fitting shell swivel to allow the end fitting to rotate freely on the.axis of the fender. The end fittings s~ll be designed to transmit the ultimate load of the aheckle to the fender. The end fittings shall be hot-dipped galvanized in accordancewith ASTM A153 or ASTM A123.

IIIL-F-29248(YD)

3.6.3 Reuair kit. One repair kit shall be provided with the first fender delivered under a specific contract. The repair kit shall contain all msterials and tools required for repairs of minor skin dsmsge and instructions for it’s use.

3.6.4 Overation and maintenance instructions. With the first fender delivered under a contract. the contractor shall furnish the Government instmctions and precautions for handling, installing,and maintaining the fenders, normslly furnished in ccmnnercialpractice.

3.7 Performance. Fender performsnce, measured as energy absorption capacity and reaction force, shall be within f 15 percent of the values listed in Table IV. Reaction force is defined as the load required to deflect the fender a given smount. The method of calculating rewired values for fender sizes not-listed in the table is described in 6.= and 6.6.

TA8LS IV. SnerKY absorption capacity and reaction force of fenders.

I Size E (minimum) F (maximum) i Diameter X Length (ft. kips) (kipe)

(ft) (See Note 1) (see note 2) i 3X6 39.0 48.0

I 3X8 55.0 68.0

I 3X1O 71.0 88.0 3X12 87.0 i 108.0

4X8 89.0

I 83.0

4X1O 118.0

I

110.0 4x12 146.0

I .136.0

5X1O 180.0 134.0 5X14 269.0

I 200.0

5X16 313.0 I

233.0 6X12 300.0 186.0

I 6X14 364.0 226.0

I 6X16 427.0 265.0

1’ 6X18 491.0 305.0

I 6X20 554.0 344.0

I 7X14 487.0

I

259.0 ;

7x16 574.0 305.0 8X14 i

619.0 288.0

8X16 733.0. 341.0 8X18 , 847.0 394.0 i 9X18 .1032.0 I

427.0 9x20

I

1175.0 486.0

10 X 18 1258.0 468.0

I 10 x 20 1435.0 534.0 ~/ E = Snergy abso~tion at 60 percent c~resaion.

~/ F = Reaction force et 60 percent compression.

I HIL-F-29248(YD)

3.8 Interchangeability. All units of the same classification furnished with similar options under a specific contract shall be identical to the extent necessary to insure interchangeability of component parts,assemblies, accessories,and spareparts.

3.9 Identificationmarking. The manufacturer*sname, location, and fewder serial number shall be lettered in white at both ends of the fender skin in a manner such that it can be read at a distance of ten feet. In addition, a metal tag or plate with stamped characters shall be attached to one end of the fender rigging providing the same informationPlus date of manufacture and the rated energy capacity of the fender.

3.10 Workmanship.

,3.10.1 Urethane shell. The urethane shell of the fender shall be free from cracks, burrs, warpage, checks, chipped, or blistered surfaces and shall have a smooth surface.

3.10.2 Steel fabrication. The steel used in fabrication shall be free from kinks, sharp bends, and other conditions which would be deleterious to the finished product. Manufacturing processes shall not reduce the strength of the steel to a value less than intended by the design. Iianufacturing processes shall be done neatly and accurately. All bends shall be made by controlled means to insure uniformity of size and shape.

3.10.3 Foam core. The foam core shall be homogeneous, fabricated from large sheets or slabs of foam, and bonded together to form a single constructed item consisting of as few pieces of foam as possible. All foam shall be as specified in Table I; the completed foam core density shall be within the limits specified in Table 1. chip, granular, or scrsp foam shall not be used and the fabricated core shall be neither loose packed nor bound with a discontinuousfiller material.

3.10.4 Welding. Welding procedures a~all be in accordancewith a nationally recognized welding code. The surface of parts to be welded shall be free from rust, scale, paint, grease, or other foreign matter. Welds sh$ll be of sufficient size and shape to develop the full strength of the parts connected by the welds. Welds shall transmit atreas without permanent defomnation or failure when the parts connected by the weld are subjected to proof and service loadings.

3.11 Inspection systm. The contractor shall establish en inspection system in accordancewith HIL-I-45208.

4. QUALITY ASSURANCE PROVISIONS

FIIL-F-29248(YD)

4.1 Responsibilityfor inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the perfomnance of all inspection requirementsas specified herein. Except as otherwise specified in the contract or purchaae order, the contractormay use hia own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the government. The Government reserves the right to perform any of the inspectionsset forth in the specificationwhere such inspectionsare deemed necessary to assure supplies and services conform to prescribed requirements.

4.1.1 Comoonent and material inspection. Components and materials shall be inspected in accordancewith all the requirements specified herein and in applicable referenced documents.

4.2 Classificationof inspections. The inspection requirements specified herein are classified as follows:

First article inspection (see 4.2.1).

:: @ality conformance inspection (see 4.2.2),

4.2.1 First article inspection. The first article inspection shall be performed on one complete fender when a first article is required (ace 3.2 and 6.2.1). This inspection shall include the examination of 4.3 and the tests of

4.4. The first article may be either a first production item or a standard production item from the supplier’s current inventory provided the item meets the requirements of the specificationand is representativeof the design, ● construction, and manufacturing technique applicable to the remaining items to be furnished under the contract.

4.2.2 guality conformance inauection. The quality conformance inspection shall be performed on each complete fender in accordance with the examination of 4.3 and the packaging inspection of 4.5.

4.3.,Examination. Each completa fender shall be examined for compliance with tha requirements specified in section 3 of this specification.This element of inspection shall ancompass all visual ex&minations and dimensional measurement. Records maintained in accordance with 3.11 shall be inspectdby the government to verify that the materials used in constructionof all contract items conform to the requirements stated herein. In particular it shall be verified that each fender skin (shall)meets the material requirements Of Table II and the minimum thickness of Table III, and that all the foam confonus to the requirements of eections 3’.4.1and 3.10.3. Average akin thicknass may be estimated by the quantity of elastomer used for each fender. Any redesign or modification of the contractor’sproduct to comply with specified requirements,or any necessary redasign or modification following failure to meet spacified requirementsshell receive particular attention for adequacy and suitability. Uoncompliencewith any specified requirements or presence of one or more defects preventing or lessening maximum efficiency shall constitute cause for rejection.

i

F!IL-F-29248(YD)

“e 4.4 Tests. The first article shall be tasted to detarmine compliancewith this spe~ation. Testa shall be conducted as apecified in 4.4.1 through

4.4.4 for fenders up to 7 feet in diameter. For fendars larger than 7 fact in diameter, due to the unavailabilityof suitable testing facilities,the tests of 4.4.1 and 4.4.2 shall not be parfotmed. In lieu of such testing, the manufacturer shall verify the enargy absorption capacity and reaction force requirementsof Table IV by using results of prior tests on similarly constmcted but smaller size fenders which it has built and tested (as outlined in 4.4.1) and extending them thrOush engineeringcalculationstO the larger sized fenders of this contract.

4.4.1 Energy absorption capacity and reaction force. The fender shal1 be compressed between two parallel flat plate surfaces to 40 percent of its original diemater (this shall be referred to as tha 60 percent compression point) by an evanly distributed load, perpendicular to its longitudinalaxia et a rate not leaa than 2.4 inches per minute. The losd and corresponding deflection shall be recorded at l-inch increments and plotted on a graph of load versus deflection. The load deflection curve shall then be integrated to generate an energy-cleflection curve for tha ,fender. At the 60 percent comPreasiOnPOint on the energy-cleflection curve, the energy absorption shall be not less than the valua of E corresponding to tI@ size fender in Table IV lese the 15 percant tolerance. The reaction force, taken from the load-daflection curve at the 60 parcent compressionpoint or the compression point at which the full (without 15 percent tolarance reduction) E value of Table IV for that size fender ia reachad if occurring at less than 60 parcent compression, shall not excead tha valua of F for that size fender given in Table IV plus the 15 percent tolerance,allowed. Upon release of the load, the fender shall ahow no sign of permanent distortion,“rips, tears, delamination, or other dafects. Thirty minutes after ralaase of the compression load, visible parmsnent deformation or elongation of tha fender or compressionaat exceading 4 percent (maaaured as reduction in fender diameter from that at the start of the test) shall constitute failure of the test. If the foam core is not bonded to tha skin, measure the compression aet by drilling 5 evenly spaced small holas, having an axia parallel to, the direction of load, along” the crest of the top fender surface and measuring the change in distance to the foam from a suitable datum bafore compression and 30 minutes aftar release of the load.

4.4.1.1 Ultimate conmression test. The procedura in 4.4.1 is continued end the fender ia compresseduntil tha 70 percent compressionpoint ia reached (without the plate surfaces contacting the end-fittings). The load shell than be releaaed amd the fender allowad to return to ita original shape. There ehall be no teara, delsminationa,or permament deformationwhich would reduce the mechanical integrity of the fender.

4.4.2 Strewth teat. The fender shell be ccmpresaed between two parallel flat plate surfaces and held at the working compression limit (6O percent) during tha strength teats of 4.4.2.1 end,4.4.2.2. During these tests, the fender shall be restrained from alidins from betwean the compressionplates by

IIIL-F-29248(YD)

rigging a stop plate perpendicular to the direction of pull as shown in figure

1. Extmsion of the fender through the slot shall not constitute failure of the test. However, adequate safaty precautions should be taken in the event extmsion of the fender occurs.

4.4.2.1 Longitudinalgull test. The stop plate and its opening shall be “ centered vertically and horizontally about the midpoint of tha longitudinal centerline of the compassed fender. The opening in the atop plate shall have a height that is not less than 4 inches higher than the maximum diameter of the fender end fitting or elaatomer collar. The opening shall have a minimum width that is 2 inches wider than the width of the compressed fender. The end fitting opposite to the stop plate shall be free during the test. The end fitting adjacent to the stop plate shall be subject to a tensile load applied in line with the longitudinalaxia of the compressed fender. Foe fenders greateq than 4 feet in diameter, the load shall be applied in 10,000 pound

(lb) inCrSJTIentauntil a load equal to 90,000 lb is achieved. For fenders 4 feet in diameter or leaa, the load shall be applied in 5,000 lb increments until a load equal to 50,000 lb is achieved. Each incrsmantal load shall be held for 1 minute and the final load held for 5 minutes. The loads shall then be released and the fender allowed to return to its original shape. There shall be no teara, delsminationa,or pemerient defomoationwhich would affect the mechanical integrity of the fender. The end fitting shall show no sign of permanent deformstion or separation from the fender.

4.4.2.2 Transverse UU1l teat. A atop.plate shall be cantered between the two ends of the compressed fender and the plate shall be such that it will not interfere with the end fittings or the elastomer collars during the test.

Both end fittings shall be aimultaneously subjected to a tensile load applied perpendicular to the longitudinalaxis of the fender and in a horizontal plane parallel to the plates shown in figure 1. For fenders greater than 4 feet in diameter, the load shall be applied simultaneouslyto each end fitting in 10,000 lb increments (except for the last increment)up to a load on each end fitting equal to 45,000 lb. For fenders 4 feet.in diameter or less, the load shall be appliad aimltaneoua Ly to each end fitting in 5,000 lb incrementsup to a load on each end fitting equal to 25,000 lb. Each incremental load shall be held for 1 minute “and the final load held for 5 minutes. The loads shall - -then be releaaed and the fender allowed to return to ita original shape.

There shall be no tears, delsminations,or pe-ent defomoationwhich would affeet the mechanical integrity of the fender. The end fittings shall show no sign of permanent defometlen or separation frem the fender.

4.4.3 Fender sustained load test. fiis teat shell be performed as en option (see 6.2.1). Compress the fender as described in 4.4.1 to a loed equal to that requirad to obtain the rated energy obtained in 4.4.1 end hold this load for one hour. Record load end deflection at the beginning end end of this one hour period end at leeet once in between at about the 30 minute point. Failure of the fender or its foam core to rebound to 90 percent of ita diamstar one hour after the ralease of the load shall constitute failure of this tast. Follow the procedures of 4.4.1 for measuring rebound of pemsnent set.

!IIL-F-29248(YD)

4.4.4 Urethane elastomer retains. Test coupons of the urethane elastomer used to manufacture each fender shall be identified and retained by the contractor for a period of not less than 5.yeara from the date of fender msnufacture. A coupon from every third fender of the lot shall be submitted to an independent laboratory for physical testing in accordance with 3.4.2 and Table II, (a) through (d). An example of coupon selection is fender 1, 4. 7, 10, 13, etc. The certified teat results of these tests are to b:

submitted to the Cognizant Contract Quality Control Representativefor approval. The government reserves the right to request any of the remaining specimens within the 5 year period and perform any or all of the tests of

3.3.2 at government expense. The test coupons shall be 36 square inches (sq.

in.) minimum by .09 ~ .03 in. thick.

4.4.4.1 Collection fixture!

a.

b.

4.4.4.2 applied is

4.4.4.3 a.

b.

4.4.4.4 conditions

4.4.4.5

If the fender skin is cast, the fixture shall be compatiblewith the casting technique used and of the above miniumum dimensions.

If the fender skin ia built up by spraying, tha fixture shall be a flat plate of 36 sq. in. area or greater.

Fixture preparation. The appropriate fixture with release agent to be at the same temperature as the fender skin when formed.

Coupon collection.

If the fender skin ia cast; the coupon shall be formed from liquid urethane in the asme manner and timing that the fender is cast.

If the fenderakin.iabuilt-upby spraying, the collection fixture is to be passed through the spray atresm ao that one layer, equivalent to one layer of urethane on the fender shell, is applied. This procedure is”to be repeated until the apecified coupon thickness is achieved. The time between coats is to be the same aa the time between layers applied to the fender shell.

Couuon curing. The coupon is to be cured under the same aa the fender shell.

FreauencY of collection. ,@e tk more coupons are required for each fander shell.

a. If cast in a mold, one coupon ia required for each component cast, i.e., enda, cylinder, joints, etc.

b. If sprayed, a minimum of one coupon, representativeof the akin cross section, is required.

4.5 PackeRinx ina9ecti0n. The packing and marking of the fenders shell be inspected to verify confo-ce to the requirementsof section 5.

fiIL-F-29248(YD)

5. PACKAGING

5.1 Packing. Packing shall be level A or C as specified (see 6.2 .1).

5.1.1 Level “A Fenders shall be pscked in crates conforming to HIL-C-3774X; , style A. Anchoring, cushioning, blocking, bracing, and waterproofing with a full shroud shall ba in accordance with the appendix of

IKL-C-3774.

5.1.2 Level C. Fenders shal1 be packed in accordancewith the

contractor’s standard practice in a manner to prevant corrosion, deterioration,and damage and to insure arrival at destination in a satisfactory condition. Preparation for delivary shall comply with applicable carrier rules and regulations.

5.2 Uarkin&. Marking ahal1 be in accordance with HIL-S’2D-129.

6. MOTES

6.1 Intended use. Fanders described in this specification are used to protect the hull of vessels when moored side by side or against piers and wharves.

6.2 Orderin% data.

6.2.1 Acquisition requirements. Acquisition documents should specify the following:

a.

b.

c.

d.

.e.

f.

Title, number, and date of this apecification.

When the issue of documents referenced herein shall be other than those listed in the issue of DODISS specified in the solicitation (see 2.1.1).

Uhen a first article is required for inspection and approval (see 3.2, 4.2.1, and 6.4).

Uhen the optional test ia required (see 4.4.3).

Dimension of fender required (see 3.5.2).

Level of packing required (ace 5.1).

6.3 Data reauiraments. When this specificationis used in an acquisition end data ara required to be delivered, the data requirements shall be devaloped as specified by en approved Data Item Description (DD FomI 1664) and delivered in accordance with the approved Contract Data RequiramvantaList (CD8L), incorporated into the contract. Uhen the provisions Of DOD FM supplement, Part 27, Sub-Part 27.410-6 (DD Form 1423) are invoked and the DD Fom 1423 is not used, the data shall be delivered by the contractor in accordance with the contract or purchase order requimts.

?IIL-F-29248(YD)

6.4 First article. Uhen a first article inspection is required, the item will be tested and should be a first production item or it may be a standard production item from the contractor’s current inventory as specified in

4.2.1. The firat article should consist of one unit. The contractingofficer should include specific instqctions in acquisitiondocuments regarding arrangements for examination, test, end approval of the first article. -.

6.5 EnerKy abaorvtion cavacity. The energy absorption capacity for various size fenders of the same diameter is directly proportionalto fender lenRth assumirm the fenders are cylinders having diameter and length equal to

‘the-respective-nominaldimensions of the actual fender.

6.6 Reaction force. The reaction force for different size fenders same diameter is directly proportional to the fender mid-body length.

6.?- Key word listinK.

Roam filled fenders Fenders Fendering system Camels Berthing facilities of the

Preparing Activity:

Navy - YO’

(Project 2040-0156)

Fii-F-29248(YD) f 3 L

* F/2

STOP PLATE

t F(TEST LOAD) EQUALS 90,000 lbs

FOR FENDERS 4 FT. IN DIA. OR LESS

F EQUALS 50,000 tbS

PLAN-TRANSVERSE PULL TEST

t

I

P tiF/2

Al

\—STOP PLATE

EF!!?J--’-2

F ;,,;<., ....’

1: ~<<~.../, .- >; .:.. “..:3+?;’’””;”” “.. ““

SECTION A-A LONGITUDINAL PULL TEST

STOP

L COMPRESSION PLATES

PLATES

FIGURE I c PULL TEST ARRANG EMENT (SC HEMATIC)

L-i

I

I I

I I I I I I

I

I I

.1

I

I

I

I

I

I I I

STANDARDIZATION OOCUMENT IMPROVEMENT PROPOSAL

(.% Instructi@ - Reverse Side)

00 CUMENT NuMBER 2, 00 CUMENT TITLE

E--F-29248(YD) Ells,l@FCiNl,FOAMFILLED,NETLF.SS .NAME OF 8uBMl~1N13 ORQANIZATION

J

4. TYPE O* ono*N,ar,~~ ,“~ .M, ❑ VENDOR

0 us,, AOOnEss(slm#t, cm S1918, ZIP C*)

I

❑ MAN”FACT”FWR

u 0,HE*,SD9.,*,:

●ROBLEA4 AnEAS a ●ww* N urnbu M we.dhu:

h nuomnnnti Wordmo:

c.fl_/R.tion*ls for %tOmnundotion;

REMARKS

. NAME of SUBMITTER ht. Fbl t, MI) - Omla,ld b, WORK T&LEPMONE NuMaER (lnelud# AIW

Cadt) - Omlmld

MAILING A0017ES5 (SOW,,. Cily. Smti, 21> cb, - ~~id S, DATE OF SUOM18SION (YYMMDD) 3 mm -. –.. . .k -

Uu &“&1 426 PREVIOUS EDITION Is O@SOLETE.