A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5905-00-683-7587
NSN 2925-00-190-5561
NSN 6685-01-206-3847
NSN 6145-00-188-3657
NSN 2925-01-658-4470
NSN 5960-01-454-7064
NSN 5925-01-038-4066
NSN 5996-01-546-9692
NSN 6240-01-406-4042
NSN 6685-01-571-5966
NSN 5975-01-278-4761
NSN 6620-01-646-8593