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 5985-00-684-6847
NSN 6320-01-265-0665
NSN 6645-00-079-1430
NSN 5855-01-098-9038
NSN 6220-01-189-7039
NSN 5930-00-226-8016
NSN 5945-00-217-3570
NSN 6130-00-411-1636
NSN 5945-01-238-0111
NSN 5930-00-886-8485
NSN 5835-01-099-1514
NSN 5835-01-242-9806