ATTACHMENT A TO APPENDIX B, WIRE ROPE PROCUREMENT

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TABLE B-3. Efficiency of Wire Rope Terminations.

TB-55-1900-232-10 U.S. Army Towing Manual

Inch Wire Towing Hawsers for T-ATF 166 Class Ships

TB 55-1900-232-10

ATTACHMENT A TO

APPENDIX B, WIRE ROPE

PROCUREMENT

1. SCOPE

This specification establishes the requirements for performance and acceptance of production units of wire rope

towing hawsers.

2. APPLICABLE DOCUMENTS

2.1 GOVERNMENT DOCUMENTS.

The following documents, of the issue in effect on the date of invitation for bids or request for proposals, form a

part of this specification to the extent specified herein. In the event of conflict between this specification and

other documents referenced herein, requirements of thus specification shall apply

SPECIFICATIONS.

Federal

RR-W-410 Wire Rope and Strand

RR-S-550 Sockets, Wire Rope

Manuals

NAVSEA S9086-BK Wire and Fiber Rope and Rigging

NSTM-000/CH 613 NAVSEA Technical Manual

STANDARDS:

Military

MIL-STD-129 Marking for Shipment and Storage

Copies of Military and Federal Specifications and Standards may be obtained from the following facility.

Commanding Officer

Naval Publications and Forms Center (NPFC)

5801 Tabor Avenue

Philadelphia, PA 19120

Tel: (215) 697-3321

STANDARDS:

Reels for all wire shall be steel and shall be constructed according to industry standards for reusable heavy-

duty reels. Reels shall be painted.

3. REQUIREMENTS

3.1 WIRE ROPE CHARACTERISTICS

3.1.1 2-Inch Wire Towing Hawsers for ATF 76, ASR 9, ARS 6, ARS 38 and ATA 120 Class Ships

3.1.1.1 Wire rope shall be 2-inch diameter, cut to 2100-foot lengths (see 3 2.1.4 for tolerances in lengths ), IPS,

drawn galvanized, preformed, regular (R.H.) polypropylene fiber core, Type I, Class 3, Construction 6, 6 x 37

(Warrington-Seale) IAW Specification RR-W-410 Documentation of all test results shall be submitted for the

production assemblies (1 data set included with the report m Section 4.4.2).

3.1.1.2 Each of the 2000-foot lengths of 2-inch wire rope shall have a closed zinc poured socket on one end

and a permanent seizing on the other end (See Section 3.2.1 ).

3.1.1.3 Each of the 2000-foot lengths of 2-inch wire rope shall be placed on a steel reel. Reels shall be sized

according to the industry standards to accept 2-inch wire. In addition to markings required in RR-W-410, each

reel shall be clearly marked on each side with the diameter and length of wire in large 3-inch size letters as

follows: "2 " x 2100', w/closed socket termination." Wire rope shall be wound on reels, closed socket first. Reel

drums shall be modified as required to allow the closed socket to be inserted into the drum and held so wire can

be uniformly wound and tightly secured.

B-15