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 5990-00-518-3195
NSN 6130-01-356-4872
NSN 4140-01-204-6716
NSN 2925-01-348-3206
NSN 6150-01-195-1474
NSN 6620-01-327-0291
NSN 5975-01-108-1244
NSN 6240-00-891-1508
NSN 6130-00-730-7411
NSN 6110-01-016-0887
NSN 6135-01-502-5787
NSN 6220-01-401-5337