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 6110-01-074-0594
NSN 5965-00-134-0883
NSN 5855-01-590-4576
NSN 6320-00-456-0836
NSN 5925-00-825-3241
NSN 6135-01-071-4923
NSN 4140-00-060-1856
NSN 5996-00-069-3515
NSN 5950-00-152-4071
NSN 6685-00-585-1981
NSN 5835-00-491-3834
NSN 6105-01-270-6839