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 5998-00-074-3991
NSN 6240-01-593-4728
NSN 5999-01-536-9450
NSN 4140-00-946-6478
NSN 6135-01-041-3829
NSN 6685-00-782-5249
NSN 5945-00-960-7367
NSN 5915-01-238-9971
NSN 5895-01-224-9416
NSN 5996-01-421-3165
NSN 5985-00-300-7616
NSN 6685-01-386-6547