A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5985-01-237-2211
NSN 5905-00-028-2098
NSN 7035-01-100-2796
NSN 5925-01-424-1407
NSN 5910-00-316-9795
NSN 5945-00-079-5404
NSN 4140-00-449-7345
NSN 5910-01-116-2626
NSN 4140-00-230-4252
NSN 5935-01-234-0351
NSN 5990-01-582-1977
NSN 6610-01-357-5957