A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5965-01-116-7245
NSN 6650-00-671-5106
NSN 5905-01-492-5761
NSN 5950-01-528-7982
NSN 5930-01-322-7581
NSN 4140-01-189-7899
NSN 6145-01-512-7446
NSN 5990-00-424-1598
NSN 5855-01-452-1406
NSN 5930-00-221-0980
NSN 6105-00-045-3700
NSN 5835-01-515-6537