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 6320-01-211-6578
NSN 5998-00-243-5433
NSN 5965-01-647-4195
NSN 5920-01-202-0951
NSN 5985-01-169-2145
NSN 5920-01-619-2621
NSN 5985-01-389-8243
NSN 6240-01-450-9269
NSN 5925-01-191-4068
NSN 5985-00-900-0544
NSN 2925-00-167-2641
NSN 7035-01-213-5590