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 5920-00-269-6178
NSN 5925-01-343-6225
NSN 6135-01-260-7180
NSN 5855-01-027-1571
NSN 6105-01-304-0172
NSN 4140-00-711-8354
NSN 5895-01-320-9211
NSN 5920-00-074-4654
NSN 6620-01-266-1663
NSN 5965-01-165-9787
NSN 5910-01-421-1335
NSN 6685-01-076-4703