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 5910-00-981-4286
NSN 5990-01-459-9533
NSN 6240-01-050-6743
NSN 5910-01-591-6801
NSN 7035-01-581-0676
NSN 6145-01-230-0058
NSN 5990-00-316-8872
NSN 5835-00-458-4392
NSN 5999-01-186-2382
NSN 5915-01-548-0925
NSN 5990-00-948-1469
NSN 5895-01-003-4596