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 5950-00-987-3531
NSN 2925-01-345-9439
NSN 5990-00-161-2797
NSN 6135-01-493-8375
NSN 6610-01-042-2279
NSN 6320-01-571-8974
NSN 5910-01-049-3153
NSN 5920-01-043-4848
NSN 6145-01-550-4434
NSN 5985-01-410-8977
NSN 6620-00-170-5296
NSN 5990-01-310-5630