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 5895-01-298-5205
NSN 6105-01-481-4042
NSN 6240-01-541-2503
NSN 5975-00-045-6704
NSN 5975-01-580-1530
NSN 5996-01-328-8018
NSN 5910-00-081-2215
NSN 2925-00-710-1879
NSN 5930-00-613-4948
NSN 6320-01-039-5891
NSN 5920-00-198-4337
NSN 6650-01-055-6168