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 5999-01-440-9392
NSN 5950-01-519-2069
NSN 6105-01-128-4389
NSN 6650-01-127-3693
NSN 5835-01-487-3042
NSN 7035-01-579-4897
NSN 6135-01-096-1452
NSN 5915-01-426-8862
NSN 5915-01-660-3809
NSN 5930-00-369-1645
NSN 4140-01-444-9815
NSN 6220-00-149-0977