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 5985-01-507-1589
NSN 6220-01-256-4555
NSN 6650-01-110-2142
NSN 6610-01-189-0953
NSN 6320-00-149-7570
NSN 2925-01-656-8217
NSN 6145-01-390-4204
NSN 5910-00-316-6181
NSN 5950-00-067-8294
NSN 5925-01-388-8095
NSN 5999-01-399-8500
NSN 5950-00-737-6164