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 5945-00-801-6539
NSN 5895-01-216-5517
NSN 5835-01-156-5622
NSN 6620-01-384-2105
NSN 6145-01-514-2566
NSN 6135-01-529-8523
NSN 5975-01-205-1074
NSN 5998-00-410-5210
NSN 5910-01-055-9743
NSN 6320-00-977-3930
NSN 6135-01-252-0315
NSN 6145-01-308-4879