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 5855-00-188-6747
NSN 7035-00-756-4374
NSN 6645-01-056-5291
NSN 5990-00-492-5063
NSN 5985-01-556-7137
NSN 5975-00-216-4848
NSN 7035-01-434-6134
NSN 5999-01-627-6815
NSN 5998-01-558-6573
NSN 4140-00-905-6039
NSN 5910-00-601-8764
NSN 5855-01-076-2741