A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5905-00-977-2455
NSN 6135-01-238-2878
NSN 5975-00-003-7844
NSN 5975-01-354-7379
NSN 6145-01-088-7495
NSN 6240-01-168-6185
NSN 5965-01-459-5493
NSN 5965-01-474-5654
NSN 5895-00-952-1703
NSN 5960-00-233-5488
NSN 5905-00-669-3268
NSN 5965-01-431-5202