A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Nuts of iron or steel
NSN 4140-01-200-5032
NSN 5990-00-099-0822
NSN 5920-01-088-7958
NSN 5930-01-634-0659
NSN 5925-00-778-9033
NSN 6645-01-146-9158
NSN 5905-01-026-1027
NSN 5905-01-132-8491
NSN 5835-00-057-7235
NSN 5950-01-197-8042
NSN 5925-01-122-7572
NSN 5960-00-930-1263