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 5935-01-446-7576
NSN 6105-01-606-9235
NSN 5935-01-433-2509
NSN 6150-00-728-9764
NSN 2925-01-167-6500
NSN 6685-01-187-8463
NSN 5965-01-625-9234
NSN 5835-00-946-2656
NSN 5990-01-534-8609
NSN 6105-01-480-6179
NSN 5895-00-637-2658
NSN 6685-00-108-6374