A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Nuts of iron or steel
NSN 6645-01-316-4900
NSN 5975-01-533-8531
NSN 5999-01-651-2227
NSN 5905-01-394-2194
NSN 6620-00-431-3837
NSN 5895-01-654-2539
NSN 5910-00-948-6018
NSN 5925-01-440-3457
NSN 6145-00-927-3187
NSN 6130-01-311-9995
NSN 5835-00-707-6266
NSN 5895-01-117-7740