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 5905-01-181-5570
NSN 4140-01-457-8583
NSN 6110-01-379-6257
NSN 6150-01-289-5090
NSN 6610-00-371-5953
NSN 6620-01-534-7180
NSN 5925-00-500-9664
NSN 6150-01-543-0892
NSN 6150-00-222-7940
NSN 5835-00-759-1109
NSN 6685-01-646-8773
NSN 5985-00-007-8759