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 5835-00-170-5238
NSN 2925-01-384-4139
NSN 5935-01-420-7588
NSN 6220-01-525-1365
NSN 6135-01-222-0703
NSN 5950-01-617-8165
NSN 5999-01-634-0576
NSN 5910-01-056-3285
NSN 6320-01-631-7828
NSN 5950-01-415-4288
NSN 5925-00-892-9932
NSN 6135-01-315-9214