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 5998-01-624-4226
NSN 5920-01-499-6301
NSN 5945-01-458-4448
NSN 6685-00-617-3733
NSN 5985-00-169-1739
NSN 4140-01-504-4349
NSN 5910-00-845-7150
NSN 5930-00-779-3628
NSN 5930-01-162-9517
NSN 5990-01-106-7459
NSN 4140-01-444-5292
NSN 6145-00-155-5297