MIL-S-3644B, MILITARY SPECIFICATION: SHAFT ASSEMBLY, FLEXIBLE (10-MAY-1985)

MIL-S-3644B, MILITARY SPECIFICATION: SHAFT ASSEMBLY, FLEXIBLE (10-MAY-1985)., This specification covrs a flexible tuning shaft of varying lengths, to be furnished as a complete assembly or as component parts. (See 3.2 and 6.2).