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 5990-00-752-2126
NSN 5930-01-415-3111
NSN 5990-01-147-5225
NSN 6645-01-046-4880
NSN 6685-00-874-0752
NSN 4140-01-028-9602
NSN 6240-01-195-8696
NSN 5950-00-484-1609
NSN 6240-01-040-1321
NSN 6145-00-530-0951
NSN 6240-01-206-4809
NSN 6220-01-485-2381