MIL-DTL-81014B
3.2.1 Metals. All metals used in the construction of the cargo hook shall be of the corrosion
resistant type or shall be treated to resist corrosion in accordance with MIL-A-8625,
QQ-C-320 or QQ-P-416. Dissimilar metals shall not be used in accordance with MIL-STD-889.
3.3 Design and construction. The hook shall be automatic (see 6.3.1) or semiautomatic
(see 6.3.3) cargo pickup.
3.4 Screw threads. All screw threads shall be in accordance with MIL-S-7742.
3.5 Threaded parts. All threaded parts shall use aircraft locking methods. Lock washers
shall not be used for locking.
3.6 Welding. Welding, where used, shall be in accordance with SAE-AMS-6858 and
SAE-AMS-STD-2219.
3.7 Interchangeability. All parts having the same manufacturer's part number shall be
directly and completely interchangeable with each other with respect to installation and
performance. Change in manufacturer's part numbers shall be in accordance with MIL-STD-100.
3.8 Operating condition. The cargo hook shall operate under the following environmental
conditions:
3.8.1 Altitude. The hook shall operate at any altitude between sea level to 20,000 feet
(see 4.5.2.14).
3.8.2 Temperature. The hook shall operate at any ambient temperature between 65 °F to
+160 °F (see 4.5.2.10 and 4.5.2.11).
3.8.3 Vibration. The hook shall withstand the helicopter vibrational environment
(see 4.5.2.9).
3.8.4 Sand. The hook shall withstand the blowing sand environment (see 4.5.2.13).
3.8.5 Salt spray. The hook shall withstand the salt spray environment (see 4.5.2.12).
3.8.6 Shock. The hook shall withstand the functional shock environment (see 4.5.2.17).
3.8.7 Water immersion. The hook shall withstand salt water immersion without permanent
damage or operational impairment (see 4.5.2.15).
3.8.8 Fungus. The hook shall withstand the fungus environment (see 4.5.2.16).
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