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 5945-00-615-7742
NSN 5930-00-389-9275
NSN 6220-00-176-5912
NSN 6645-01-449-1452
NSN 6620-01-068-4498
NSN 5915-00-139-6710
NSN 4140-00-486-6292
NSN 6130-01-508-7732
NSN 7035-01-606-9692
NSN 6145-01-545-6348
NSN 5999-01-550-4397
NSN 5835-01-213-0833