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 5999-00-106-0603
NSN 6610-01-082-7332
NSN 5945-01-540-4827
NSN 6135-01-252-0315
NSN 5990-00-950-6890
NSN 5920-00-059-1106
NSN 5975-00-592-8675
NSN 2925-01-631-7004
NSN 5920-00-150-1148
NSN 5975-01-229-2854
NSN 6610-00-605-1915
NSN 5915-01-379-1482