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 5930-00-566-6931
NSN 6130-01-050-3208
NSN 5975-00-408-8152
NSN 6220-01-488-9416
NSN 6685-01-421-4403
NSN 6135-01-588-8914
NSN 6130-01-363-9613
NSN 6220-00-708-9909
NSN 4140-01-168-7685
NSN 5985-01-208-6571
NSN 5915-00-005-3311
NSN 6645-01-450-5175