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 4140-00-100-4563
NSN 6130-01-386-1430
NSN 5925-01-502-2470
NSN 5975-01-297-3879
NSN 6145-00-099-8986
NSN 6610-01-381-3181
NSN 5930-01-406-5613
NSN 2925-01-218-0153
NSN 5945-01-440-9992
NSN 6240-01-267-3573
NSN 6135-00-477-8847
NSN 5915-01-023-0300