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 4140-01-320-1179
NSN 5996-01-302-4295
NSN 2925-00-028-1481
NSN 6620-01-233-7466
NSN 5905-01-047-1503
NSN 6130-00-896-9511
NSN 6320-01-078-8257
NSN 5905-01-275-6496
NSN 5905-01-025-2350
NSN 2925-00-215-4954
NSN 5998-00-275-7221
NSN 6145-01-440-4445