Hexagon cross section, 0.375 in. Across flats
NSN 5950-01-430-5502
NSN 6620-00-564-9412
NSN 5835-00-185-4919
NSN 4140-01-592-7003
NSN 5930-01-376-1803
NSN 5975-01-455-7114
NSN 6145-01-258-1840
NSN 5930-01-287-0028
NSN 6135-00-255-1340
NSN 7035-01-627-3070
NSN 5905-01-048-4265
NSN 6145-01-634-0388
Last Updated: 08/04/2025