Outside diameter 0.500; inside diameter 0.375; wall 2.062
NSN 6620-00-248-6950
NSN 6610-01-477-4787
NSN 5960-01-236-6389
NSN 6135-01-111-1495
NSN 6685-01-255-2253
NSN 5950-00-947-6832
NSN 6220-00-023-4344
NSN 5960-00-464-3375
NSN 2925-01-597-9541
NSN 2925-01-026-1000
NSN 6650-01-064-7116
NSN 5920-01-444-3983