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 5910-01-481-3658
NSN 6620-00-088-8795
NSN 6220-00-858-4831
NSN 5910-00-782-4759
NSN 5910-01-152-2906
NSN 5960-01-048-3429
NSN 4140-01-219-4754
NSN 5996-00-946-3396
NSN 4140-00-236-3239
NSN 7035-01-317-4227
NSN 5910-01-172-1001
NSN 6150-01-307-5173