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 6320-01-651-7476
NSN 6620-01-275-2781
NSN 6650-01-502-7316
NSN 2925-01-510-9378
NSN 6150-01-278-3448
NSN 5975-00-840-5844
NSN 6150-01-221-2693
NSN 5996-01-633-7979
NSN 5905-00-836-4683
NSN 6620-01-263-6697
NSN 6135-01-532-7655
NSN 5999-00-169-3685