A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 6650-01-505-5531
NSN 6145-00-437-0025
NSN 5985-00-495-6971
NSN 6135-01-127-0173
NSN 2925-01-222-7764
NSN 6150-00-433-2338
NSN 6610-01-047-7245
NSN 5996-00-833-2521
NSN 6240-00-851-3056
NSN 6110-01-325-8943
NSN 6135-01-627-1056
NSN 5935-01-423-1053