MIL-S-83863B, MILITARY SPECIFICATION: SPACER ASSEMBLY, SURVIVAL CONTAINER PARACHUTE SUPPORT (01-JUN-1987)

MIL-S-83863B, MILITARY SPECIFICATION: SPACER ASSEMBLY, SURVIVAL CONTAINER PARACHUTE SUPPORT (01-JUN-1987)., This is a general specification for the parachute support assembly used on rigid seat style survival containers.