Upper hexagon castellated 6 places center to center along flats, 0.125 in. Min 0.155 in. Max through w, 0.187 in. Depth
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 7035-00-371-7749
NSN 4140-01-501-6031
NSN 6610-01-121-4925
NSN 6135-00-209-6918
NSN 2925-00-677-5641
NSN 5925-01-411-9736
NSN 5999-01-375-4983
NSN 6620-01-098-2960
NSN 6610-00-353-9990
NSN 6145-01-261-5150
NSN 5910-00-280-1463
NSN 5960-00-074-8968