A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5925-00-840-7058
NSN 7035-00-585-2113
NSN 5996-01-314-7443
NSN 5965-00-217-2476
NSN 5990-01-020-6841
NSN 5835-01-482-1591
NSN 6130-00-053-2992
NSN 5999-00-180-4282
NSN 6650-00-869-5760
NSN 6135-00-437-5182
NSN 5855-01-653-3334
NSN 7035-00-922-5700