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 5855-00-256-5562
NSN 5960-01-649-1341
NSN 6220-01-188-6962
NSN 5930-01-074-8414
NSN 6145-01-227-0659
NSN 6110-00-879-0810
NSN 5960-01-649-1341
NSN 6645-01-534-5545
NSN 5985-01-569-4058
NSN 5960-01-649-1341
NSN 6150-01-295-1969
NSN 5990-01-591-8797