A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 2925-01-167-6500
NSN 6130-01-139-1766
NSN 6150-01-574-6015
NSN 5905-01-270-6928
NSN 5835-00-911-2340
NSN 6135-01-415-1163
NSN 5930-01-476-2508
NSN 5990-01-419-0661
NSN 5960-00-272-9230
NSN 5930-01-437-0094
NSN 4140-01-602-5458
NSN 5915-01-192-1303