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 4140-00-069-5154
NSN 6110-00-851-6746
NSN 5835-00-804-0569
NSN 4140-01-202-9563
NSN 5945-01-285-6635
NSN 5930-00-646-7031
NSN 5960-01-279-0985
NSN 5990-01-503-0194
NSN 5835-00-126-2961
NSN 5945-01-219-6023
NSN 5945-00-586-7054
NSN 6135-01-375-6724