Heat treat: (for 1085 or 1095 steel) heat at 1450 to 1500 degrees f; (for 1650 steel) heat at 1550 to 1600 degrees f; oil quench; temper 1 hour; locking feature included in head; rockwell min 73.0 to rockwell max 76.0 hardness.
NSN 5855-01-628-6427
NSN 5975-01-528-7359
NSN 4140-01-593-1723
NSN 6685-01-469-0984
NSN 5895-00-097-0553
NSN 6320-00-483-0451
NSN 5965-01-576-1868
NSN 5925-00-695-9414
NSN 5835-01-616-6131
NSN 5855-01-507-5749
NSN 6320-01-352-5653
NSN 5935-00-362-3873