1 required
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 6320-00-831-2227
NSN 6240-00-185-8367
NSN 5935-00-251-7845
NSN 6130-01-314-5274
NSN 6610-01-132-6660
NSN 5965-01-122-7477
NSN 5965-01-599-1863
NSN 6145-01-429-3108
NSN 6145-01-429-5530
NSN 5935-01-086-1805
NSN 5925-00-910-7485
NSN 5905-00-990-4611