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 6220-01-279-1331
NSN 6240-00-034-5491
NSN 6685-01-099-4046
NSN 5999-01-374-8659
NSN 5950-00-228-4937
NSN 6650-01-003-9355
NSN 2925-00-455-2367
NSN 6110-00-399-1413
NSN 5996-00-681-0490
NSN 5930-01-485-8399
NSN 5960-01-537-8161
NSN 7035-01-337-1729