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 6240-00-138-3082
NSN 5910-01-028-7621
NSN 2925-01-269-1312
NSN 6220-01-297-5645
NSN 5930-00-286-8560
NSN 6610-01-452-5180
NSN 6320-01-229-6479
NSN 5998-01-250-0623
NSN 5895-00-050-6612
NSN 6220-01-416-5880
NSN 5915-00-094-2886
NSN 5950-00-958-1559