MIL-DTL-83420M
3.5.10 Resistance to fluids. Type II wire rope shall show no deleterious effects when
immersed in the fluids listed in 4.4.10.
3.6 Identification of product. The wire rope shall be identified in accordance with the
following:
3.6.1 Identification by number. Each manufacturer shall assign a significant
identification number on each manufacturing reel of wire rope. When the wire rope on the
manufacturing reel is cut to specified lengths for transfer to the shipping reel (see 6.4.11), each
shipping reel shall be marked with the identification number of the manufacturing reel.
3.6.2 Identification by color tracer filament. Each manufacturer shall identify every wire
rope by the use of color filaments manufactured into the rope. The specification preparing
activity will assign a combination of colors to each manufacturer desiring qualification. The
inclusion of color tracing filaments alone does not designate that the wire rope is in full
conformance with this specification or has met qualification requirements, but only serves to
identify the manufacturer. Color tracer filaments are not mandatory in 3 x 7 construction.
3.6.3 Identification of reels and shipping containers. Each shipping reel and shipping
container shall be marked in accordance with the requirements of MIL-STD-129. The following
information shall be included:
a. Stock No. or identification as specified in the contract. 1/
b. Size (include diameter of wire rope, outside diameter of nylon).
c. Name of wire rope manufacturer.
d. Name of contractor.
e. Contractor order number.
f. Type of wire rope, composition, protective coating for composition A, and
specification number (MIL-DTL-83420).
g. Date of manufacture (month/year).
h. For reels with 2 lengths of wire rope, record distance from outside end to separation
point and total length of wire rope on the reel.
i. Manufacturing reel/lot number.
1/ The contractor shall enter the National Stock Number (NSN) specified in the contract or as furnished by the
procuring activity. Space shall be left for the NSN when not available.
3.7 Workmanship and finish. All details of workmanship and finish shall be in
accordance with the best practice for high quality aircraft wire rope consistent with the
requirements of this specification. The finished cable shall be uniform in construction and
securely laid, free from kinks, loose wires, loose strands, or other defects (see 4.4.2). Protruding
wires are considered a defect and not more than one broken wire will be accepted in 1000 feet of
wire rope.
3.7.1 Physical appearance, type II. The nylon jacket shall be uniform in outside
diameter (O.D.) and in wall thickness as specified in table II and shall be uniform in appearance.
The nylon jacket shall be translucent and shall be homogeneous and uniform in consistency. The
jacketed wire rope shall have no cracks or seams, or foreign material in the nylon on the surface.
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