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 5960-00-036-8187
NSN 4140-00-404-7092
NSN 5920-01-466-8210
NSN 5855-00-079-2370
NSN 6685-01-107-6956
NSN 5960-00-933-9181
NSN 5905-00-997-9583
NSN 4140-01-500-0618
NSN 6240-01-247-1512
NSN 5990-01-091-3567
NSN 5998-01-124-9170
NSN 6220-01-472-2998