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 5990-01-386-5561
NSN 5998-01-060-6625
NSN 7035-00-135-4758
NSN 5996-00-524-3384
NSN 5945-01-585-0073
NSN 5965-00-689-1545
NSN 5950-01-398-0762
NSN 5855-01-352-7033
NSN 6135-00-927-5848
NSN 5930-01-578-8197
NSN 5960-01-543-0235
NSN 5895-00-238-4618