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 4140-00-004-1377
NSN 6685-00-221-5750
NSN 6610-00-169-4195
NSN 5915-01-474-6197
NSN 5975-00-284-6763
NSN 5950-01-653-9127
NSN 5965-01-173-7521
NSN 4140-00-960-8222
NSN 5915-00-665-2854
NSN 5835-00-494-8419
NSN 5999-00-613-6907
NSN 5915-01-266-4600