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 5935-00-285-1963
NSN 5915-00-341-6505
NSN 6610-00-929-6936
NSN 6110-00-232-5406
NSN 5999-01-332-8723
NSN 6130-01-257-0942
NSN 5910-00-081-2215
NSN 5925-01-371-3378
NSN 5915-01-220-8830
NSN 5935-01-377-2601
NSN 5930-01-303-2138
NSN 5945-00-541-7833