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 6240-00-888-7563
NSN 6105-00-891-9768
NSN 5835-01-338-5176
NSN 6105-01-647-0455
NSN 6145-00-147-3499
NSN 6130-01-163-8515
NSN 6150-01-447-3125
NSN 5920-01-295-3267
NSN 5975-01-557-0694
NSN 5835-00-239-9619
NSN 5920-00-778-3882
NSN 6145-01-649-6317