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 5990-01-411-5930
NSN 6620-00-159-0866
NSN 6110-01-630-2076
NSN 6110-01-222-5298
NSN 6645-01-333-2035
NSN 5855-01-054-5243
NSN 6220-00-223-7445
NSN 6320-01-072-2073
NSN 5935-01-337-0107
NSN 6610-01-501-0129
NSN 6610-01-609-7776
NSN 6620-01-451-3742