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 6650-01-525-7370
NSN 5945-01-348-6074
NSN 5835-00-689-0278
NSN 6150-01-155-3855
NSN 5965-01-157-2403
NSN 5905-01-303-7388
NSN 2925-01-633-4048
NSN 5950-00-428-6313
NSN 5945-01-642-6805
NSN 6150-00-821-7576
NSN 6685-01-198-5776
NSN 6145-01-242-8494