Used on 8.000 inch diameter pressure vessel
NSN 5965-01-380-9821
NSN 5935-01-157-8611
NSN 5910-01-468-6694
NSN 5925-01-200-6825
NSN 6685-01-536-6874
NSN 6110-01-381-0469
NSN 6105-01-062-4584
NSN 6620-00-160-0844
NSN 5895-00-737-4831
NSN 6220-00-244-2040
NSN 6645-00-736-0476
NSN 5915-00-606-2899