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 6240-01-157-5154
NSN 6220-00-878-7301
NSN 5950-00-281-2389
NSN 5915-01-520-3417
NSN 6610-00-575-7933
NSN 6110-01-484-8974
NSN 6150-01-533-8061
NSN 6610-01-469-6235
NSN 5855-01-618-9749
NSN 6645-01-627-6629
NSN 5835-00-958-6231
NSN 6240-01-563-0096