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 6620-01-231-7777
NSN 5930-01-138-8351
NSN 5945-01-394-2206
NSN 6110-01-421-2714
NSN 6620-00-257-2783
NSN 5925-00-379-0920
NSN 6220-01-102-8110
NSN 6620-01-259-5944
NSN 5960-01-038-5637
NSN 6650-00-563-3880
NSN 5835-01-645-2892
NSN 6150-00-421-3227