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 5965-01-423-2204
NSN 6145-01-098-4464
NSN 6320-00-004-9158
NSN 5920-01-621-9796
NSN 6110-01-365-5711
NSN 6145-00-309-2211
NSN 5985-01-304-4427
NSN 6610-01-394-4944
NSN 6220-01-535-3540
NSN 5950-00-083-8943
NSN 5910-01-442-7789
NSN 5935-01-287-9334