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 5990-01-147-5225
NSN 6220-01-507-1537
NSN 6610-00-061-7882
NSN 5920-00-081-9156
NSN 5965-00-199-4456
NSN 6650-00-891-9850
NSN 6130-00-479-3941
NSN 5920-01-212-9504
NSN 6145-01-210-6543
NSN 6645-01-011-0419
NSN 5999-00-661-0954
NSN 5998-00-309-4466