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 5835-00-092-1136
NSN 6240-01-077-1127
NSN 5935-01-529-7868
NSN 5925-01-210-1678
NSN 5905-00-472-6546
NSN 6145-01-180-1597
NSN 5935-01-502-0501
NSN 5925-00-361-8836
NSN 6645-01-362-0596
NSN 5975-01-244-3414
NSN 5905-01-510-1007
NSN 2925-00-054-3550