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 5895-01-423-7699
NSN 5996-01-406-4035
NSN 5965-01-013-0290
NSN 7035-01-616-4159
NSN 6105-01-435-5530
NSN 6650-00-647-1085
NSN 5835-01-038-9945
NSN 5930-00-122-9337
NSN 6105-00-592-2887
NSN 6145-01-517-6451
NSN 5930-01-538-4318
NSN 6650-01-168-8451