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.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 4140-01-187-0000
NSN 5960-00-912-1114
NSN 5996-00-256-0635
NSN 6620-01-415-2307
NSN 6685-00-248-5820
NSN 5975-00-320-3150
NSN 5960-00-608-6711
NSN 5925-01-465-6279
NSN 6645-01-497-1998
NSN 5998-01-185-5009
NSN 6685-00-418-5960
NSN 6610-01-137-5959