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 5990-00-333-6210
NSN 4140-00-313-2358
NSN 6685-00-652-9419
NSN 6135-01-539-5098
NSN 6650-01-647-9482
NSN 5915-01-357-7585
NSN 2925-00-038-0596
NSN 6150-01-073-1760
NSN 5985-01-580-6600
NSN 5985-01-474-4409
NSN 5930-00-218-4739
NSN 6610-01-123-7292