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 6650-01-226-0720
NSN 5895-01-030-8972
NSN 5835-00-770-2843
NSN 6320-00-593-0379
NSN 5996-01-009-0428
NSN 5985-01-487-4053
NSN 5996-01-377-3743
NSN 7035-01-038-0847
NSN 5910-00-413-2630
NSN 5925-01-533-3827
NSN 6135-00-351-8606
NSN 5998-01-257-4251