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 6130-00-718-0860
NSN 5950-00-909-3607
NSN 6240-01-556-5808
NSN 6620-01-062-1662
NSN 6110-01-197-7917
NSN 5990-01-565-2226
NSN 6110-00-581-4445
NSN 5905-01-594-2937
NSN 6145-00-621-0225
NSN 6135-01-580-5726
NSN 6645-00-357-8827
NSN 5975-01-107-9457