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 6320-00-539-9283
NSN 6105-00-698-7512
NSN 5905-01-342-0839
NSN 5910-00-330-4983
NSN 5990-01-555-6616
NSN 6240-00-734-3276
NSN 5895-01-134-5330
NSN 6220-00-997-1939
NSN 6145-01-068-3234
NSN 5930-01-292-6730
NSN 6145-00-331-6814
NSN 5915-00-222-6031