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 6620-01-540-3440
NSN 5996-01-311-1167
NSN 6220-01-280-2086
NSN 5996-01-656-6263
NSN 6685-00-705-1522
NSN 6320-00-845-3261
NSN 5950-01-443-6364
NSN 6620-01-143-4862
NSN 5925-00-337-8138
NSN 5950-01-099-0041
NSN 5960-01-287-4187
NSN 5895-01-201-2489