Od is 0.375 in
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 6620-01-633-8443
NSN 5855-01-297-1886
NSN 4140-01-068-3500
NSN 7035-01-207-8704
NSN 6620-01-573-5794
NSN 6220-00-113-3166
NSN 5920-00-629-0442
NSN 5925-00-422-0688
NSN 5835-00-289-9080
NSN 6220-00-282-9714
NSN 5999-00-574-3208
NSN 5998-01-452-9327