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 5895-01-382-7940
NSN 5945-01-084-6584
NSN 5965-00-167-1255
NSN 5990-00-594-7291
NSN 5950-01-158-6485
NSN 5965-01-204-1423
NSN 6610-01-322-7677
NSN 5855-01-147-4785
NSN 5960-01-428-4471
NSN 5855-01-452-5398
NSN 5930-01-062-9834
NSN 4140-00-269-5668