Outside diameter 0.500; inside diameter 0.375; wall 2.062
NSN 6320-01-321-7658
NSN 5985-01-430-3497
NSN 6110-01-286-9902
NSN 6105-01-505-9411
NSN 5985-01-418-1999
NSN 2925-01-191-9668
NSN 6135-01-282-4326
NSN 5935-00-726-9997
NSN 5915-01-398-6277
NSN 5996-01-019-0664
NSN 5930-01-069-2776
NSN 6105-00-161-8434