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 5998-00-596-9568
NSN 5930-01-014-4851
NSN 5950-01-147-8307
NSN 5935-01-455-9346
NSN 6145-00-033-2997
NSN 6620-00-305-8481
NSN 5915-01-298-4075
NSN 5996-00-897-5040
NSN 5996-00-278-5193
NSN 5905-00-788-3130
NSN 6220-01-617-2666
NSN 6130-00-385-1708