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 5920-01-121-8022
NSN 5960-00-356-8744
NSN 2925-01-201-3043
NSN 4140-01-023-1537
NSN 5950-00-147-5870
NSN 6620-01-407-1158
NSN 5910-01-054-2951
NSN 2925-01-387-0870
NSN 6320-00-994-0179
NSN 6110-01-425-1449
NSN 5855-01-258-5161
NSN 6135-01-189-2293