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 4140-01-627-6868
NSN 2925-01-243-7736
NSN 2925-01-437-1128
NSN 5960-01-543-0235
NSN 4140-01-516-8995
NSN 5950-01-031-6068
NSN 6130-01-338-5278
NSN 6130-01-406-2946
NSN 6110-00-714-0115
NSN 5950-00-170-9103
NSN 5925-00-884-4806
NSN 5945-01-461-7798