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 6645-01-356-9864
NSN 6320-01-317-3663
NSN 5935-01-386-2931
NSN 5945-00-914-3095
NSN 5835-01-237-3769
NSN 6650-01-318-6552
NSN 4140-00-824-8821
NSN 5975-01-466-9012
NSN 2925-01-303-5266
NSN 5835-01-463-2334
NSN 5996-01-521-6988
NSN 6135-01-319-5567