FSC: 4030 - Fittings for Rope, Cable and Chain
RR-S-550 D - RR-S-550D (AMENDMENT-1), FEDERAL SPECIFICATION: SOCKETS, WIRE ROPE (20-FEB-1986)
RR-S-550 E - RR-S-550E, FEDERAL SPECIFICATION: SOCKETS, WIRE ROPE (10-OCT-2012)
RR-S-550 F - RR-S-550F, FEDERAL SPECIFICATION: SOCKETS, WIRE ROPE (07-NOV-2018)
