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MIL-DTL-83140 Wire Rope: Stainless Steel, Preformed, Rotation Resistant, For Aircraft Rescue Hoist, Utility Hoist And WinchingThis specification covers the requirements for rotation-resistant \(see 6.4.6\), preformed \(see 6.4.5\), stainless steel wire rope \(see 6.4.10\) intended for aircraft rescue hoist, utility or retrieval hoist or winching applications.

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MIL-DTL-83140B
3.9 Break test. Wire ropes shall meet or exceed the minimum breaking strength specified
in table I when tested in accordance with 4.4.4. The sample from the load test (see 3.8) may be
used for the break test if procedure 4.4.5.1 is used and no wire failure is detected.
3.10 Endurance. All wire ropes 1/4 inch and under shall withstand endurance tests at
ambient temperature in accordance with table II. The wire ropes shall withstand the loads and
reversals specified in table II without failure (see 4.4.6, figure 3, and figure 4).
TABLE II. Endurance testing and breaking strength.
Breaking
W1
Pulley
Number of
Nominal
Tension
strength
weight
diameter
reversals
diameter
Construction
(pounds)
(min.)
(pounds)
(inches)
(inches)
(pounds)
5/32
19 × 7
30
60
1.484
150,000
1,300
3/16
19 × 7
45
90
1.781
150,000
2,000
7/32
19 × 7
60
120
2.078
150,000
2,700
1/4
19 × 7
70
140
2.375
150,000
3,450
7/32
10 × 7
60
120
2.493
150,000
2,700
(7 × 19 IWRC)
1
Includes weight of idler sheave and hanger as shown in figure 3.
3.10.1 Breaking strength after endurance test. The breaking strength (see 6.4.3) of the
wire rope after the endurance test described in 3.10 shall be not less than the minimum values
specified in table II (see 4.4.4).
3.11 Identification of product. The wire rope shall be identified in accordance with the
following:
3.11.1 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, each shipping reel
shall be marked with the identification number of the manufacturing reel.
3.11.2 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 serves only to
identify the manufacturer.
3.12 Workmanship. All details of workmanship shall be in accordance with the best
practices for quality rotation-resistant, preformed, stainless steel wire rope consistent with the
requirements of this specification. The wire rope shall be securely laid and free from kinks,
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