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 5990-01-032-5160
NSN 2925-01-103-9419
NSN 6610-01-633-8931
NSN 5895-01-293-4725
NSN 5985-00-959-3318
NSN 6220-01-189-4112
NSN 5905-01-098-3106
NSN 5925-01-525-5332
NSN 6145-00-284-1514
NSN 5998-01-142-4372
NSN 5999-01-541-8842
NSN 6240-01-088-0389