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 5935-00-957-9208
NSN 6240-00-514-3507
NSN 6135-01-136-1059
NSN 5835-01-067-9271
NSN 5915-01-381-2519
NSN 5915-00-432-2993
NSN 5905-00-655-6323
NSN 5925-01-415-8155
NSN 5965-01-180-7070
NSN 5965-01-032-9146
NSN 2925-01-058-1718
NSN 5930-01-581-5631