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 5930-00-362-6737
NSN 5835-01-625-8604
NSN 5950-00-780-9071
NSN 6135-01-177-3552
NSN 5950-01-192-9939
NSN 5855-01-573-8397
NSN 5945-00-822-0058
NSN 5965-01-285-9934
NSN 5855-01-125-4768
NSN 6240-01-261-4958
NSN 6130-00-153-8327
NSN 5960-01-353-3302