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 6620-01-534-2370
NSN 6145-01-441-8571
NSN 6320-01-643-0850
NSN
NSN 6685-00-499-9233
NSN 6320-01-425-1417
NSN 5985-01-563-0077
NSN 5965-00-342-5126
NSN 6320-01-141-1665
NSN 6685-01-470-0748
NSN 6145-00-240-4532
NSN 6220-01-199-0794