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 5999-01-541-5766
NSN 6130-01-157-4171
NSN 5855-01-259-0995
NSN 5999-00-666-3838
NSN 4140-01-386-6688
NSN 2925-00-999-8967
NSN 5855-00-055-1579
NSN 5960-00-007-7071
NSN 5999-01-460-5616
NSN 5975-00-814-9263
NSN 5915-00-949-5405
NSN 5835-01-555-8963