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 6240-01-064-2980
NSN 5950-00-945-0435
NSN 4140-00-173-0706
NSN 5990-01-160-6978
NSN 6685-01-519-3447
NSN 5996-00-996-1021
NSN 7035-00-205-1932
NSN 7035-00-371-7749
NSN 6320-00-646-3311
NSN 6130-01-487-8699
NSN 5975-01-563-2038
NSN 6130-01-450-9915