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 5905-00-982-1917
NSN 7035-00-390-6917
NSN 5999-01-585-2369
NSN 6150-01-061-6779
NSN 5920-01-263-2781
NSN 6320-01-177-3192
NSN 6135-01-483-1501
NSN 6105-00-168-3734
NSN 5935-00-905-9710
NSN 5998-00-702-4652
NSN 5960-00-872-0531
NSN 6110-01-494-0394