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 5990-01-253-5672
NSN 5950-01-541-7272
NSN 5975-00-338-2733
NSN 6610-01-192-6478
NSN 6240-01-515-0260
NSN 5925-00-419-0233
NSN 5905-00-906-1131
NSN 6135-01-242-2304
NSN 5950-01-350-5054
NSN 5895-01-092-5370
NSN 7035-00-478-4596
NSN 5998-01-524-4333