MIL-DTL-13718F
3.2.3.2 Laminated. Cotton base laminates shall not be used (see 4.5.1).
3.3 Design and construction. Relays shall be constructed in accordance with
Drawings 7717664, 8724750, 8724750 and 10894808, or as specified (see 6.2). Rating of part
shall be as specified on drawing and shall be based upon an ambient temperature of
77 + 15 degrees Fahrenheit (°F) (25 + 8.3 degrees Celsius (°C)) (see 4.5.2).
3.3.1 Locking devices. Lock washers, self-locking nuts, safety wires, or other approved
locking devices shall be incorporated where specified, or where required to prevent loosening of
components (see 4.5.2).
3.3.2 Electrical terminals and connectors. Terminals and connectors shall conform to
applicable drawings (see 3.3). Terminals shall have normal current conducting path (see 4.5.2).
3.3.3 Mounting. When brackets are used, they shall be an integral part of relay housing,
or shall be securely attached thereto to prevent any movement between relay and mounting
bracket in service, and to permit electrical contact to ground, if needed (see 4.5.2).
3.3.3.1 Ground. The finish around mounting holes shall permit electrical contact to
ground when relay is mounted as in intended use. This requirement does not apply to relays
mounted on insulated bases (see 4.5.2).
3.3.3.2 Position. Relay shall operate as specified herein when mounted in any position
(see 4.5.2).
3.3.4 Polarity. Relays shall operate in negatively grounded circuits (see 4.5.2).
3.3.5 Mechanical failure. Construction shall be such that failure of linkage between
actuator and movable contacts will result in contacts moving to deenergized position when relay
is deenergized (see 4.5.2).
3.3.5.1 Springs. Springs shall not be used to transmit current (see 4.5.1 and 4.5.2).
3.3.6 Weight. Weight of relay shall be as specified on the applicable drawings
(see 3.3 and 4.5.2)
3.4 Performance.
3.4.1 Terminal torque resistance. External terminal shall withstand 25 inch-pounds
(in-lb) of torque without damage to terminals or adjacent parts (see 4.5.3).
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