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 6110-00-823-2365
NSN 5935-01-379-2219
NSN 5975-00-488-5502
NSN 6240-00-209-1883
NSN 6620-00-170-5296
NSN 6685-00-393-6435
NSN 5960-00-167-0397
NSN 5930-01-152-1142
NSN 5990-00-838-1082
NSN 5960-01-437-5318
NSN 6620-01-121-4019
NSN 2925-00-147-8150