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 5998-01-089-9725
NSN 5895-01-308-6186
NSN 5985-01-433-2242
NSN 6645-01-106-6369
NSN 5999-01-620-8457
NSN 6620-01-208-5915
NSN 6240-01-294-5238
NSN 4140-00-735-9309
NSN 5990-01-387-0623
NSN 5930-00-862-5582
NSN 6220-01-340-3699
NSN 6150-01-067-8376