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 5960-01-363-5951
NSN 6110-01-512-2008
NSN 5998-01-580-2900
NSN 5920-01-461-3392
NSN 6135-00-073-8939
NSN 5999-00-471-3513
NSN 5965-01-556-9520
NSN 6620-00-484-3752
NSN 5920-01-441-5774
NSN 6130-01-503-0277
NSN 5990-01-298-3152
NSN 5950-01-336-9991