P-245-0135.docx

REVISION No. . CHANGE No. .

PURCHASE SPECIFICATION FOR WMEC 270 WMEC CLASS PROPELLER BLADE SETS

P-245-0135

ORGINATED BY DATE: .

ORGINATOR’S COMMAND USCG Surface Forces Logistics Center (SFLC) .

DEPARTMENT / DIVISION Medium Endurance Cutters Product Line (MECPL)

UPDATED BY Stephen R. Twomey DATE: 12/2013

REVIEWED BY DATE: .

SFLC QA REVIEW Matt Wentzler DATE: .

1.0 SCOPE

1.1 This document sets forth the requirements for the manufacture, testing, inspection and packaging of propeller blades and patterns used on 270 ft. WMEC Cutters.

1.2 CLASSIFICATION

1.2.1 Propeller Blade Sets

Type 1 - Left Hand set of 4 EA (LH) Starboard P/N 8-350-255 Type 2 - Right Hand set of 4 EA (RH) Port P/N 8-350-254

1.2.2 Propeller Blade Patterns

Type A - Left Hand (LH) P/N 270-PROP-PATT-LH Type B - Right Hand (RH) P/N 270-PROP-PATT-RH

1.3 GOVERNMENT FURNISHED PROPERTY (GFP) - The listed items are property of and managed by the Coast Guard Supply Center, Curtis Bay MD.

a. Dummy Hub, Propeller RH & LH - Stock No. 2010-01-FST-0069, P/N DUMMY HUB 901-WMEC-245-007

b. Trunnion Kit, Right Hand - Stock No. 2010-01-F91-0184

c. Trunnion Kit, Left Hand - Stock No. 2010-01-F91-0185

d. Blade Gauges - Stock No. 2010-01-F88-0030

e. Blade Palm Drill Jig - Stock No. 2010-01-F88-0037

2.0 APPLICABLE DOCUMENTS

2.1 DOCUMENT AVAILABILITY - For the methods and conditions for obtaining the referenced documents see section 6.1.

2.2 GOVERNMENT DOCUMENTS - The following specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the documents listed here by number and date shall be those in the current Department of Defense Index of Specifications and Standards (DODISS) and supplements thereto.

2.2.1 SPECIFICATIONS

a. MIL-P-2845D(SH) - DATED 17 JUN 91 Propulsion Systems, Boat and Ship; Main Shafting, Propellers, Bearings, Gauges, Special Tools, and Associated Repair Parts; Packaging of.

FSC 2010

USCG - SCCB

DATE - 06/93

4337-P-245-135

REVISION 1 - 11/93

b. MIL-I-45208A - DATED 24 JUL 81 INSPECTION SYSTEM

c. MIL-P-116-J - DATED 08 APR 88 Preservation, Methods of.

d. MIL-T-22085 - DATED 30 SEP 86, Tapes, Pressure Sensitive, Adhesive, Preservation and Packaging.

2.2.2 STANDARDS

a. MIL-STD-271F - DATED 27 June 86 Requirements for Nondestructive Testing Methods.

b. MIL-STD-45662A - DATED 1 AUG. 88 Calibration Systems Requirements.

2.3 OTHER GOVERNMENT DOCUMENTS - The following documents form a part of this specification to the extent specified herein. The documents listed shall be by title and effective date, unless otherwise documented.

2.3.1 DRAWINGS

USCG DWG. NO. 901-WMEC-245-004 REV E Dated 11 August 1992

2.3.2 COAST GUARD SPECIFICATIONS

4330-D-000-100 REV 2, dated 10/91, Bar Coding for USCG Supply Center Curtis Bay Procured Material.

2.4 COMMERCIAL DOCUMENTS - The following documents form a part of this specification to the extent specified herein. The documents listed here shall be the version listed by number and date from the referenced industry organization. Commercial documents may also be listed in the Department of Defense Index of Specifications and Standards (DODISS).

2.4.1 American Bureau of Shipping (ABS)

a. Guidance Manual for Bronze and Stainless Steel Propeller Castings Dated 1984

2.4.2 Society of Automotive Engineers (SAE)

a. SAE-J-448A, DATED 6/63, Surface Texture Standard

2.5 ORDER OF PRECEDENCE - In the event of a conflict between the text of this specification and the references cited herein, this specification shall take precedence.

3.0 REQUIREMENTS

3.1 GOVERNMENT FURNISHED PROPERTY (GFP) - The contractor shall provide protective storage for the GFP when not in use, and safe handling when in use.

3.1.1 The storage area shall at a minimum be closed on all sides, dry, and locked when unattended.

3.2 MATERIALS

a. PATTERNS, TYPE A LEFT HAND AND TYPE B RIGHT HAND

1. Types A & B - Aluminum (any grade, magnesium free).

b. PROPELLER BLADES, TYPE 1 LEFT HAND AND TYPE 2 RIGHT HAND

1. Types 1 & 2 - ABS 4 Nickel Aluminum Bronze as listed in the Guidance Manual for Bronze and Stainless Steel Propeller Castings Dated 1984.

c. Any material analysis made shall be made only by a laboratory meeting the calibration requirements in section 4.6 of this specification.

1. A certification stating this shall accompany all material analyses submitted.

3.3. CONSTRUCTION, PROPELLER BLADE PATTERNS

a. TYPE A LEFT HAND AND TYPE B RIGHT HAND patterns shall be built using USCG Drawing 901-WMEC-245-004 REV E for guidance.

b. All patterns shall be designed to allow integrally cast test coupons.

c. All patterns shall be made from one continuous pour.

d. Pattern part numbers and stock numbers shall be stamped into the pattern palm area using 1/4 inch characters.

1. Type A Part Number - 270-PROP-PATT-LH Stock Number - 2010-01-F93-0412

2. Type B Part Number - 270-PROP-PATT-RH Stock Number - 2010-01-F93-0413

3.4 CONSTRUCTION PROPELLER BLADES - Each propeller blade shall be manufactured in accordance with ABS Guidance Manual for Bronze and Stainless Steel Propeller Castings, and the drawings as listed:

a. TYPE 1 LEFT HAND Propeller Blade, USCG Drawing 901-WMEC-245-004 REV E and the appropriate pattern (Type A) as design guidance. The aluminum pattern manufactured in accordance with paragraph 3.3 of this specification shall be used in casting the blades.

b. TYPE 2 RIGHT HAND Propeller Blade, USCG Drawing 901-WMEC-245-004 REV E and the appropriate pattern (Type B) as design guidance. The aluminum pattern manufactured in accordance with paragraph 3.3 of this specification shall be used in casting the blades.

c. Each casting shall be formed with one continuous pour.

d. To aid with the manufacturer of the propeller blades (LH & RH) the listed GFP will be furnished to the contractor by the government:

1. Dummy Hub, Propeller RH & LH - Stock No. 2010-01-FST-0069

2. Trunnion Kit, Right Hand - Stock No. 2010-01-F91-0184

3. Trunnion Kit, Left Hand - Stock No. 2010-01-F91-0185

4. Blade Gauges - Stock No. 2010-01-F88-0030

5. Blade Palm Drill jig - Stock No. 2010-01-F88-0037

3.5 TESTS & INSPECTIONS OF PATTERNS TYPES A & B

a. Dimensional report of the finished patterns.

b. Certification from the contractor stating that the patterns are acceptable to manufacture the propeller blades required in this specification.

c. Identification via chemical analysis of the material used to manufacture the patterns.

d. Weight of the finished patterns.

3.6 TESTS & INSPECTIONS OF PROPELLER BLADE SETS TYPES 1 & 2

a. Dimensional Inspection shall be in accordance with this specification and USCG drawing 901-WMEC-245-004 REV E.

b. Each ladle shall be tested for Tensile Strength, Yield Strength, and Elongation properties per the ABS Guidance Manual for Bronze and Stainless Steel Propeller Castings Dated 1984 paragraph 1.2.3.

1. Four tension property tests shall be made for each ladle of metal.

c. Each ladle shall be analyzed for material composition analysis as per the ABS Guidance Manual for Bronze and Stainless Steel Propeller Castings dated 1984 paragraph 1.2.2.

d. Inspection for discontinuities shall be in accordance with ABS Guidance Manual for Bronze and Stainless Steel Propeller Castings Dated 1984 table 1.1.

e. Liquid Penetrant Testing shall be performed in accordance with MIL-STD 271F section 5.0 using group III material.

3.7 BALANCING - The finished propeller blades shall be balanced using the government furnished Dummy Hub, ACN 2010-01-FST-0069.

a. It is essential that the dummy hub and balancing arbor be true and in balance itself. The dummy hub shall be checked by the contractor prior to its use.

b. The blades shall be balanced as a set of 4 and marked to ensure assembly in the same position in which they were balanced.

c. Blades shall be numbered 1 through 4 and installed on the hub consecutively and counter to the direction of rotation.

d. The propeller blades shall be rotated on the arbor and the balance rechecked to be sure that any corrections indicated for the propeller blades do not include any effects of unbalance or bending of the balancing arbor.

e. The maximum permissible static component of the residual unbalance of the propeller blades with the dummy hub shall not exceed 192.4 ounce inches.

3.7.1 Material removed to effect balancing shall be taken from the suction face of the heavy blade. Care shall be taken to keep a fair surface.

a. The area from which metal is taken shall not come within 10 percent of the chord length to the leading or trailing edges.

3.8 PROPELLER MARKINGS

a. Stamping of the propeller palm shall be in accordance with USCG Drawing 901-WMEC-245-004 REV E Note 7.

b. Serial numbers shall be as follows:

For TYPE 1 PROPELLER BLADES - 270-LH-94-001, 270-LH-94-002, 270-LH-94-003, 270-LH-94-004, 270-LH-94-005... The sequence shall continue for as many propeller blades provided on this contract.

For TYPE 2 PROPELLER BLADES - 270-RH-94-001, 270-RH-94-002, 270-RH-94-003, 270-RH-94-004, 270-RH-94-005... The sequence shall continue for as many propeller blades provided on this contract.

3.9 FINISH - Shall be in accordance with USCG Drawing 901-WMEC-245-004 REV E.

3.10 TOLERANCES

a. Tolerances shall be in accordance with USCG drawing 901-WMEC-245-004 REV E and as follows: Faring rod clearance shall not exceed 0.030 inches and shall not vary at a rate greater than 0.005 inches per inch.

**b. Note #22 on U.S. Coast Guard dwg. 901-WMEC-245-004 REV E shall be replaced with, the radius shall be accurate within a plus tolerance of zero, and a minus tolerance of 0.250".

3.11 NOTIFICATIONS & INSPECTIONS - The contractor shall be responsible for notifying the Contracting Officer at least seven (7) calendar days prior to said contractor being ready for any Quality Assurance (Q.A.) inspections or monitored testing as required herein.

3.12 SPECIAL TOOLING - If the Contractor finds it necessary to manufacturer any special tooling for any contract referencing this specification, all said special tooling shall become the property of the Coast Guard.

a. The contractor shall notify the contracting officer of the existence of the special tooling before packaging of the purchased propeller blades so they can be inspected by the Contracting Officers Representative.

4.0 QUALITY ASSURANCE (Q.A.)

4.1 GENERAL - The contractor shall provide and maintain an inspection system which shall ensure each item offered to the Government for acceptance conforms with contract requirements. The system shall be documented and meet the requirements of MIL-I-45208A.

4.2 RESPONSIBILITY FOR INSPECTION - The contractor shall be responsible for the performance of all inspection requirements as specified herein. The contractor may use his own or any other facilities for the performance of the inspections and tests, unless disapproved by the government. The government reserves the right to perform any of the inspections and tests set forth in this specification at any time.

4.3 RESPONSIBILITY FOR COMPLIANCE - All items shall meet the requirements of this specification. The inspections set forth in this specification shall become part of the contractor's overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the government for acceptance comply with all requirements of the contract. Sampling for quality conformance does not authorize submission of known defective material (either indicated or actual) nor does it commit the government to acceptance of defective material.

4.4 INSPECTIONS/TESTS. - The inspections, and tests required herein are the minimum necessary and are not intended to replace any controls, examinations or tests normally employed by the contractor to assure the quality of the product. The following are required and may be monitored by a Contracting Officers Representative.

4.4.1 PATTERNS TYPES A & B - TEST REPORT OF THE FINISHED PATTERN ONLY SHALL INCLUDE:

a. Dimensional Inspection in accordance with section 3.5.a.

b. Pattern Certification in accordance with section 3.5.b.

c. Material analysis in accordance with section 3.5.c

d. Weight of the finished patterns.

4.4.2 PROPELLER BLADES TYPE 1 & 2

a. All dimensions, tolerances, and pitch in accordance with section 3.6.a.

b. Tensile Strength, Yield Strength, and Elongation properties in accordance with section 3.6.b.

c. Material composition analysis in accordance with 3.6.c.

d. Inspection for discontinuities shall be in accordance with section 3.6.d.

e. Liquid Penetrant Testing shall be in accordance with 3.6.e.

4.5 TEST AND INSPECTION REPORTS. One copy of any required inspection, test or tolerance check report shall be sent to the Contracting Officer for approval. A copy of any test, inspection or tolerance check report shall also be turned over to the Contracting Officers Representative upon his arrival at the contractor's plant.

a. All out of tolerance readings shall be circled on any inspection, test or tolerance check report submitted.

4.6 CALIBRATION SYSTEM - The contractor shall maintain a test equipment calibration program documented and traceable to ANSI/NCSL Z540-1.

4.7 PACKING INSPECTION. The Contracting Officer shall be notified as in 3.11 prior to the preservation, packaging, and marking of the completed units.

5.0 PRESERVATION & PACKING, & MARKING

5.1 PRESERVATION & PACKAGING

5.1.1 PATTERNS TYPES A & B

a. Blade edge protectors shall be installed on each propeller pattern in accordance with MIL-P-2845D(SH) paragraph 3.8.1.6.2.

5.1.2 PROPELLER BLADES TYPES 1 & 2

a. Prior to preservation each propeller blade shall be cleaned in accordance with MIL-P-116J paragraph 3.3.1 process C-1. After cleaning and prior to preservation propeller blade bolt holes, crankpin holes, and alignment holes shall be covered by tape conforming to MIL-T-22085 type II.

b. After cleaning, strippable compound preservative shall be applied to each propeller blade in accordance with MIL-P-2845D(SH) paragraph 3.8.1.3 thru 3.8.1.3.1.

c. After the application of strippable compound, blade edge protectors shall be installed in accordance with MIL-P-2845D(SH) paragraph 3.8.1.6.2.

d. Prior to packaging, special marking shall be applied over the strippable preservative in accordance with MIL-P-2845D(SH) paragraph 3.8.1.6.3.

5.2 PACKING

5.2.1 PATTERNS TYPES A & B

a. Patterns - Each propeller pattern shall be packed in accordance with specification MIL-P-2845D(SH) figure 8.

5.2.2 PROPELLER BLADES TYPES 1 & 2

**a. Each set of blades (4 each right hand or 4 each left hand), shall be packed in accordance with MIL-P-2845D(SH) paragraph 3.9.1.2.3.1 and figure 8. The blades shall be packed in multiple trip containers and marked "REUSABLE" in accordance with MIL-P-2845D(SH) paragraph 3.10.1.2. The exterior of each container shall be marked with the propeller blade serial numbers of all the blades in the set to ensure that the complete set is issued when required.

5.2.3 The GFP supplied shall be preserved and packaged as it was received for return to the Coast Guard.

5.3 MARKING - Propeller Blades & Patterns - Each preserved, and packed blade set and pattern shall be marked in the upper left-hand side of the two longest sides, (two opposite sides if square) of each box.

a. Each piece of GFP shall be marked as indicated in section 5.3.1.

5.3.1 This marking shall consist of the STOCK NUMBER, ITEM NAME, PART NUMBER, CONTRACT NUMBER, SHIPPING WEIGHT (in lbs.,) condition code ie. CONDITION A, unit of issue with quantity (1) and the words COAST GUARD SCCB MATERIAL. See below for marking layout.

TYPE 1 PROPELLER BLADE SET (LH)

TYPE 2 PROPELLER BLADE SET (RH)

PATTERN TYPE A LEFT HAND

PATTERN TYPE B RIGHT HAND

(GFP) DUMMY HUB RH & LH

(GFP) BLADE PALM DRILL JIG

(GFP) TRUNNION KIT LH

(GFP) TRUNNION KIT RH

COAST GUARD SCCB MATERIAL

(GFP) BLADE GAUGES

5.3.2 Specification MIL-P-2845D(SH) paragraph 3.10.1.1 shall be reworded as follows: If the container is damaged notify the Contracting Officer at the Coast Guard Supply Center Curtis Bay, Curtis Bay, MD 21226. The container shall be opened only by the installing activity.

5.4 BAR CODING - Bar code labels shall be supplied on all CLIN's except for those that require data submissions only.

a. All bar coded labels shall be in accordance with SCCB specification 4330-D-000-100.

1. The actual labels shall be Type "V", Grade "A", Style "2", Composition "b" with plastic laminate.

2. Each label shall contain encoded data for the Stock Number, OEM CAGE code, Actual Part Number (OEM or as required herein), and the Delivery & Order Number.

3. The marking required in 5.3 can be applied separately or as part of the Bar Code Label.

6.0 NOTES

6.1 GOVERNMENT & COMMERCIAL DOCUMENT SOURCES

6.1.1 GOVERNMENT DOCUMENTS

a. Specifications and Standards (DODISS Documents)

Standardization Document Order Desk 700 Robbins Avenue Building #4, Section D Philadelphia PA. 19111-5094 215-697-1187

b. DOD & Navy Publications & Forms (Other Than DODISS)

Naval Publication and Forms Center 5801 Tabor Ave.

Philadelphia PA. 19120 215-697-2000

c. USCG Supply Center Curtis Bay MD. 21226 Att Procurement Branch code 3120 301-636-7504

6.1.2 COMMERCIAL DOCUMENTS

a. American Bureau of Shipping (ABS) 45 Eisenhouer Drive P.O. Box 910 Paramus N.J. 07653-0910

201-368-9100, FAX 201-368-0255

b. Society of Automotive Engineers 400 Common Wealth Drive Warrendale PA. 15096

412-776-4841, FAX 412-776-5760

DEFINITE ITEMS

Certifications, Tests, & Balance information for Types 1 and 2 in accordance with specification 4337-P-245-135.

in accordance with specification 4337-P-245-135, complete with Special tooling in accordance with section 3.12 of specification 4337-P-245-135.

6 SE

Stock No. 2010-01-119-3972 in accordance with specification 4337-P-245-135,complete with Special tooling in accordance with section

3.12 of specification 4337-P-245-135.

6 SE

Stock Numbers 2010-01-FST-0069, 2010-01-F88-0037, 2010-01-F91-0185, 2010-01-F91-0184, 2010-01-F88-0030, in accordance with specification 4337-P-245-135. Not to be delivered until contract completion, or by the Contracting Officers direction.

OPTIONAL ITEMS

accordance with specification 4337-P-245-135.

DELIVERY SCHEDULE – DEFINITE ITEMS

3AA

30 days for Coast Guard Review

DELIVERY SCHEDULE – OPTIONAL ITEMS

SPECIFICATION 4337-P-245-135 DATED 06/93 AFTER THIS REVISION WILL BE

4337-P-245-135 REVISION 1 DATED 11/93

1.2 INSERT after the word "set" in Type 1 & 2 "of 4 EA"

1.3 INSERT "property of and" before the word managed

2.2.d INSERT d. MIL-T-22085 - DATED 30 SEP 86, Tapes, Pressure Sensitive, Adhesive, Preservation and Packaging.

4.3 CHANGE first sentence to read. All items shall meet the requirements of this specification.

4.4.1 ADD after only - SHALL INCLUDE:

SPECIFICATION CHANGE NOTICE (SCN)

SUPPLY CENTER CURTIS BAY MARYLAND

|PAGE 1 OF 1 | |__| PROPOSED |XX| APPROVED |

|SCN No. 1 SPECIFICATION No. 4337-P-245-135 CH. DATE 12/13/93 | |CONTRACT/SOLICATATION PR. No. |

|LAST SPECIFICATION REVISION & DATE 1 11/93 |

| APPROVALS |

|CHIEF TECHNICAL (code 4342) |

|NAME SIGNATURE DATE |

|SPECIFICATION PREPARER/COTR (code 4342) | |NAME CWO D. Heisey SIGNATURE DATE 12/13/93 |

| SMN SUMMARY OF ACTIVE CHANGES |

|SCN No. | EFFECTED SECTIONS | MOD DATE | NOTES |

| NONE

| CHANGES THIS SCN |

| SECTION | ACTUAL CHANGE |

| 3.10 b |ADD as new subsection "b. Note #22 on U.S. Coast Guard | | | dwg. 901-WMEC-245-004 REV E shall be replaced with " | | | the radius shall be accurate within a plus tolerance | | of zero, and a minus tolerance of 0.250".". |

SPECIFICATION CHANGE NOTICE (SCN)

SUPPLY CENTER CURTIS BAY MARYLAND

|PAGE 1 OF 1 | |__| PROPOSED |XX| APPROVED |

|SCN No. 2 SPECIFICATION No. 4337-P-245-135 CH. DATE 02/16/94 | |CONTRACT/SOLICATATION DTCG40-94-B-20006 PR. No. 4-37-0201-0015 |

|LAST SPECIFICATION REVISION & DATE 1 11/93 |

| APPROVALS |

|CHIEF TECHNICAL (code 4342) |

|NAME SIGNATURE DATE |

|SPECIFICATION PREPARER/COTR (code 4342) | |NAME CWO D. Heisey SIGNATURE DATE 02/16/94 |

| SMN SUMMARY OF ACTIVE CHANGES |

|SCN No. | EFFECTED SECTIONS | MOD DATE NOTES 1 3.10 b 12/13/93

CHANGES THIS SCN |SECTION ACTUAL CHANGE

5.2.2.a CHANGE to read: Each set of blades (4 each right hand or 4 each left hand), shall be packed in accordance with MIL-P-2845D(SH) paragraph 3.9.1.2.3.1. and figure 8. The blades shall be packed in multiple trip containers and marked "REUSABLE" in accordance with MIL-P-2845D(SH) paragraph 3.10.1.2. The exterior of each container shall be marked with the propeller blade serial numbers of all the blades in the set to ensure that the complete set is issued when required.

5.3.1 TYPE 1 ROPELLER BLADE SET (LH) marking CHANGE quantity & unit of issue to 1 - SE TYPE 2 PROPELLER BLADE SET (RH) marking CHANGE quantity & unit of issue to 1 - SE