P-245-0339.doc

REVISION No. .

TITLE

PURCHASE SPECIFICATION FOR PROPELLERS

USED ON 160 FT

WLIC CONSTRUCTION TENDER

P-245-0339

ORGINATED BY S. HARDSOCK DATE 09/98 .

ORGINATOR’S COMMAND ENGINEERING LOGISTICS CENTER (ELC) .

DEPARTMENT / DIVISION EQUIPMENT MANAGEMENT DIVISION (CODE 026).

INTERNAL REVIEWER E. R. FISCHER DATE .

SOWRB APPROVAL DATE .

PURCHASE SPECIFICATION FOR PROPELLERS

USED ON 160 FT WLIC CONSTRUCTION TENDERS

1.0 SCOPE

1.1. This document sets forth the requirements for the manufacture, testing, inspection, and packaging of propellers used on 160 ft. WLIC Construction Tenders.

1.2. CLASSIFICATION

1.2.1. Propeller Types

a. Type 1 - Left Hand (LH), P/N 160-WLIC-4400-1LH.

b. Type 2 - Right Hand (RH), P/N 160-WLIC-4400-2RH.

2.0 APPLICABLE DOCUMENTS

2.1. DOCUMENT AVAILABILITY - To obtain the referenced documents see section 6.

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.

2.3. SPECIFICATIONS

a. MIL-P-2845D(SH) - DATED 17 JUN 1991, Propulsion Systems, Boat and Ship; Main Shafting, Propellers, Bearings, Gauges, Special Tools, and Associated Repair Parts; Packaging of.

b. MIL-T-22085E - DATED 20 DEC 1994, Tapes, Pressure Sensitive, Adhesive, Preservation and Sealing.

2.4. STANDARDS

a. MIL-STD-167-1(SHIPS) - DATED 1 MAY 1974, Mechanical Vibrations of Shipboard Equipment.

b. MIL-STD-2035A(SH) - DATED 15 MAY 1995, Nondestructive Testing Acceptance Criteria.

2.5. 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.

2.5.1. NAVSEA Technical Publications

a. S9074-AQ-GIB-010/248 - Dated 01 AUG 1995, Requirements for Welding and Brazing Procedure and Performance Qualification.

b. T9074-AS-GIB-010/271 - Dated 30 APRIL 1997, Requirements for Nondestructive Testing Method.

2.6. DRAWINGS

a. USCG DWG. NO. 160WLIC-4400-2 REV A, Propeller.

2.7. SPECIFICATIONS

a. COAST GUARD SPECIFICATION, D-000-0100 Dated 10/91 REV E 7/96, Bar Coding for USCG Engineering Logistics Center Procured Material.

2.8. 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).

2.8.1. American Bureau of Shipping (ABS)

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

2.8.2. Society of Automotive Engineers (SAE)

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

2.8.3. American National Standards Institute (ANSI)/ National Conference of Standards Laboratories (NCSL)

a. ANSI/NCSL Z540-1-1994 DATED 1994, General Requirements for Calibration Laboratories and Measuring and Test Equipment.

2.8.4. American Society For Quality Control(ASQC)

a. ANSI/ASQC Q9003-1994, DATED 1994, Model for Quality Assurance in Final Inspection and Test.

2.9. 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. MATERIAL

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

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

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

a. A certification stating this shall accompany all material analysis submitted.

3.2. 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:

3.2.1. TYPE 1, LEFT HAND Propeller, USCG Drawing 160WLIC-4400-2 REV A as design guidance

3.2.2. TYPE 2, RIGHT HAND Propeller, USCG Drawing 160WLIC-4400-2 REV A as design guidance

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

3.2.4. WELD REPAIRS - If the castings require any weld repairs, welding procedures, welders, and welding operations shall be qualified in accordance with S9074-AQ-GIB-010/248.

3.2.5. No weld repair is authorized unless prior approval is received from the Contracting Officer.

3.2.6. Welding on the pressure face in the critical area shall not be undertaken without prior approval of the Contracting Officer.

a. The critical area is described as the pressure face of the blade between the fillet and the .4 radius and starting at the leading edge encompassing 80% of the chord length taken at the 0.4 radius. (Reference Figure 1 of DOD-STD-2185(SH).

b. Welding repairs of propellers shall meet the requirements of DOD-STD-2185(SH).

3.3. TESTS & INSPECTIONS OF PROPELLER BLADE SETS TYPES 1 & 2.

3.3.1. Dimensional inspection shall be in accordance with this specification and USCG drawing 160WLIC-4400-2 REV A for left hand (LH) and right hand (RH) propellers.

3.3.2. 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.

3.3.3. One tension property test shall be made for each ladle of metal.

3.3.4. 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.

3.4. TOLERANCES, PROPELLERS TYPES 1 & 2

3.4.1. An individual blade's mean pitch shall not vary more than plus or minus 1.5 percent of design pitch, using the 0.5 to the 0.95 radii for the average.

3.4.2. Pitch shall not vary more than plus or minus 2.0 percent from design at each individual blade radius.

3.4.3. Blade section widths at each design radius shall be within a tolerance of plus or minus 2.0 percent of design width.

3.4.4. Blade thickness shall be accurate within a plus 2.5 percent, minus 1.5 percent or minus 0.040 inches of design dimensions, whichever is the greatest tolerance. Thickness readings shall be taken and recorded at all 10 percent stations from the 0.3 radius through the 0.95 radius.

3.4.5. The blade radius shall be accurate within a tolerance of plus or minus 1.0 percent of design.

3.4.6. The blade center axis of all blades shall track at blade tip within a tolerance of 1/4 inch.

3.4.7. The center of the propeller blades shall be 90 degrees apart, plus or minus 15 minutes.

3.4.8. Clearance under the fairing rod shall not exceed .030 inches and shall not vary at a rate greater than .005 inches per inch.

3.5. SURFACE FINISH - Surfaces of the propeller blades and hub shall be ground fair and polished in accordance with SAE-J-448A as follows.

3.5.1. Propeller blade surfaces - 63 micro inches or better.

3.5.2. Propeller Hub - 125 micro inches or better.

3.5.3. All other machined surface finish requirements shall be in accordance with drawing USCG DWG. NO. 160WLIC-4400-2 REV A.

3.6. BALANCING

3.6.1. Each propeller shall be single plane (static) balanced in accordance with MIL-STD-167-1(SHIPS) paragraph 5.2.2 and as stated herein. A speed of 475 revolutions per minute (RPM) shall be used for the maximum operating RPM of the unit.

3.6.2. 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.

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

3.7. SURFACE INSPECTIONS

3.7.1. A visual inspection shall be performed on all exterior surfaces in accordance with MIL-STD-2035A(SH), section 4.

a. All visual defects, even though deemed acceptable, shall be documented on the inspection report.

3.7.2. The Contractor shall perform a dye penetrant inspection over 100 percent of the blade surfaces including the hub in accordance with T9074-AS-GIB-010/271. The acceptance criteria of MIL-STD-2035A(SH) Table IV shall be used for evaluations.

3.8. PROPELLER MARKINGS - Each propeller shall be stamped with the listed information.

3.8.1. The stampings shall be at least 1/4" high of legible printing.

3.8.2. The stampings shall include, at a minimum, the items listed.

a. NAME OF MANUFACTURER

b. SHIP CLASS - 160 FT WLIC

c. LH OR RH

d. DESIGN DIAMETER (INCHES) 48.00"

e. DESIGN PITCH (INCHES) 44.00"

f. ACTUAL WEIGHT (POUNDS) - T.B.D.

g. TYPE OF MATERIAL - NI AL BRZ ABS TYPE 4

h. SERIAL NUMBERS (as detailed below).

1. For TYPE 1 PROPELLER – 160-WLIC-99-LH-001

2. For TYPE 2 PROPELLER – 160-WLIC-99-RH-002

3.9. NOTIFICATIONS & INSPECTIONS - The Contractor shall be responsible for notifying the Contracting Officer's Quality Assurance Representative at least seven (7) calendar days prior to inspections or monitored testing required herein.

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 ANSI/ASQC-Q9003-1994.

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 Government Quality Assurance Representative.

4.4.1. PROPELLERS TYPE 1 & 2 - Test report of the finished propellers shall include:

a. All dimensions, tolerances, and pitch in accordance with sections 3.3.1 and 3.4.

b. Tensile Strength, Yield Strength, and Elongation properties in accordance with section 3.3.2.

c. Material composition analysis in accordance with section 3.3.4.

d. Inspection for discontinuities shall be in accordance with section 3.7.1.

e. Liquid Penetrant Testing shall be in accordance with section 3.7.2.

f. Balancing as required in section 3.6.

4.5. TEST AND INSPECTION REPORTS - One copy of any inspection, test or tolerance check report shall be sent to the Contracting Officer.

4.5.1. A copy of any test, inspection or tolerance check report shall also be turned over to the Coast Guard Quality Assurance Representative upon arrival at the Contractor's plant.

4.5.2. Any inspection, test or tolerance check report submitted shall have all out of tolerance readings circled.

4.6. CALIBRATION SYSTEM - The Contractor as well as any subContractors shall be required to maintain a test equipment calibration program in compliance with ANSI/NCSL Z540-1. The program shall be documented and traceable to the National Institute of Standards (NIST).

4.6.1. The calibration system records shall be maintained for inspection for the duration of any contract referencing this specification.

4.7. PACKING INSPECTION - The Contracting Officer's Quality Assurance Representative shall be notified prior to the preservation, packaging, packing, and marking of the completed units in accordance with section 3.9.

5.0 PRESERVATION, PACKAGING & PACKING, & MARKING

5.1. PRESERVATION & PACKAGING

5.1.1. PROPELLERS TYPES 1 & 2

a. Prior to preservation each propeller shall be cleaned by any process or combination of processes which will accomplish thorough cleaning without damage to the propeller blades. After cleaning and prior to preservation, propeller bolt holes or cavities shall be covered by tape conforming to MIL-T-22085E, TYPE II.

b. After cleaning, strippable compound preservative shall be applied to each propeller in accordance with MIL-P-2845D(SH) paragraphs 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 packing, 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. PROPELLERS TYPES 1 & 2

a. Each propeller shall be individualy packed in accordance with MIL-P-2845D(SH) paragraph 3.9.1.2.3.4.

b. Each propeller shall be packed in multiple trip containers and marked "REUSABLE" in accordance with MIL-P-2845D(SH) paragraph 3.10.1.2.

5.3. MARKING - Each packaged and packed propeller shall be marked in the upper left-hand side of the two longest sides, (two opposite sides if square) of each box or crate.

5.3.1. This marking shall consist of the STOCK NUMBER, ITEM NAME, PART NUMBER, SERIAL NUMBER, SHIPPING WEIGHT (in lbs.), CONTRACT NUMBER, condition code ie. CONDITION A, UNIT OF ISSUE with QUANTITY (1) and the words COAST GUARD ELC MATERIAL.

a. See below for marking lay out.

1. TYPE 1 - PROPELLER, LEFT HAND (LH)

STOCK NUMBER 2010-01-036-7597

ITEM NAME

PROPELLER, LH

PART NUMBER 160-WLIC-4400-LH

SERIAL NUMBER (see section 3.8.2.8.h)

SHIPPING WEIGHT As Determined by Contractor

CONTRACT NUMBER

CONDITION CODE CONDITION A

QUANTITY & UNIT OF ISSUE 1-EA

COAST GUARD ELC MATERIAL

REUSABLE CONTAINER DO NOT

DESTROY

2. TYPE 2 - PROPELLER, RIGHT HAND (RH)

STOCK NUMBER 2010-01-037-7295

ITEM NAME PROPELLER, RH

PART NUMBER 160-WLIC-4400-RH

SERIAL NUMBER (see section 3.8.2.8.h)

SHIPPING WEIGHT As Determined by Contractor

CONTRACT NUMBER

CONDITION CODE CONDITION A

QUANTITY & UNIT OF ISSUE 1- EA

COAST GUARD ELC MATERIAL

REUSABLE CONTAINER DO NOT

DESTROY

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 Engineering Logistics Center, 2401 Hawkins Point Road, Baltimore, MD. 21226-5000. The container shall be opened only by the installing activity.

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

5.3.4. All bar coded labels shall be in accordance with ELC

specification D-000-0100 REV E, DATED 7/96.

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

b. Each label shall contain encoded data for the Stock Number, Contract Number, and the Delivery & Order Number if applicable.

c. 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)

Sandardization Document Order Desk

700 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

6.1.2. COMMERCIAL DOCUMENTS

a. American Bureau of Shipping (ABS)

2 World Trade Center

106 th Floor

New York, NY. 10048

212-839-5000, FAX 212-839-5130

b. Society of Automotive Engineers, Inc. (SAE)

400 Commonwealth Drive

Warrendale, PA 15096

412-776-4841

FAX 412-776-5760

c. American Society For Quality Control (ASQC)

611 East Wisconsin Avenue

Milwaukee, Wisconsin 53202

414-272-8575, FAX 414-272-1734

d. American National Standards Institute (ANSI)

1430 Broadway

New York, NY 10018

212-642-4900

6.1.3. OTHER GOVERNMENT DOCUMENTS

a. USCG Engineering Logistics Center

MAIL STOP #026 BLDG 31 2nd FL.

2401 Hawkins Point Road

Baltimore, MD. 21226-5000

410-762-6473

Attn: Code 046