Heavy duty; orbital
NSN 6650-01-578-5519
NSN 6105-01-152-2800
NSN 5855-01-499-6147
NSN 6320-01-592-6248
NSN 6240-01-557-9038
NSN 6610-01-109-3359
NSN 5915-01-543-6286
NSN 5910-01-196-3245
NSN 5990-00-212-4316
NSN 5985-00-114-1812
NSN 5915-01-500-2147
NSN 5835-01-492-4318