A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5895-01-196-2380
NSN 5920-01-119-9216
NSN 5965-01-406-6320
NSN 5835-01-544-5183
NSN 2925-01-271-8727
NSN 5975-01-624-1835
NSN 5965-00-275-0491
NSN 5985-01-556-4421
NSN 6130-01-057-8008
NSN 6685-01-332-3657
NSN 5895-01-516-4512
NSN 6130-01-375-4586