Outside diameter 0.500; inside diameter 0.375; wall 2.062
NSN 5910-01-500-1601
NSN 6620-00-723-9552
NSN 5855-00-548-4742
NSN 6645-00-808-1407
NSN 5855-01-503-1495
NSN 5905-01-502-7028
NSN 5855-01-091-9966
NSN 5930-00-278-7731
NSN 6645-01-430-4125
NSN 2925-01-607-4340
NSN 5935-01-032-3025
NSN 5999-01-133-8444