MIL-DTL-641F, DETAIL SPECIFICATION: JACKS, TELEPHONE GENERAL SPECIFICATION FOR (09-SEP-2013) [SUPERSEDING MIL-J-641E]
MIL-DTL-641F, DETAIL SPECIFICATION: JACKS, TELEPHONE GENERAL SPECIFICATION FOR (09-SEP-2013) [SUPERSEDING MIL-J-641E]., This specification covers jacks used in telephone (including telephone switchboard consoles), telegraph, and teletype circuits, and for connecting headsets, handsets, and microphones into communications circuits.