Used on 8.000 inch diameter pressure vessel
NSN 5915-01-502-6623
NSN 6240-00-959-7025
NSN 6105-01-601-6911
NSN 6145-01-462-2460
NSN 6650-00-838-7338
NSN 4140-01-354-2686
NSN 5965-00-150-1144
NSN 5835-01-347-8714
NSN 5920-01-457-6741
NSN 5935-01-354-8110
NSN 5985-01-003-9732
NSN 5835-01-515-6537