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 6650-00-226-7099
NSN 6620-00-057-2764
NSN 5855-01-406-7237
NSN 5835-00-523-0736
NSN 5855-01-064-8961
NSN 5990-00-724-0171
NSN 5910-00-209-6243
NSN 5925-01-508-5755
NSN 6610-00-752-8689
NSN 5950-00-250-1831
NSN 5990-01-584-8363
NSN 6240-01-243-5714