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 4140-00-227-8228
NSN 5990-01-258-3848
NSN 6150-00-699-2569
NSN 5960-01-428-4471
NSN 5925-01-223-3729
NSN 6145-01-205-5184
NSN 5999-01-592-2604
NSN 5965-01-215-0993
NSN 2925-00-906-0421
NSN 2925-01-225-0713
NSN 6240-01-271-2222
NSN 5915-00-291-3736