A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 7035-00-929-0363
NSN 5975-00-953-4568
NSN 6240-01-425-5655
NSN 5985-00-699-2520
NSN 5965-00-757-3403
NSN 5910-01-282-4639
NSN 5920-01-424-0745
NSN 5965-01-532-0628
NSN 5985-00-001-7068
NSN 5905-00-597-6081
NSN 5950-01-103-5119
NSN 5975-00-844-5075