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 6240-00-372-4841
NSN 5960-01-094-7569
NSN 5905-01-573-3691
NSN 5925-00-735-1350
NSN 6650-01-626-9616
NSN 6105-01-633-8975
NSN 5965-00-518-0958
NSN 5920-01-381-2597
NSN 5835-00-987-9341
NSN 6650-01-010-4204
NSN 5930-01-310-8415
NSN 5950-01-328-1344