Item must comply with requirements of defense supply center columbus production standard no. Lo1156
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 4140-00-238-9940
NSN 5925-00-500-9664
NSN 6150-01-392-7346
NSN 6150-01-225-4897
NSN 5975-01-335-1815
NSN 6650-01-057-2596
NSN 6145-00-232-0813
NSN 6105-01-096-9187
NSN 5999-01-418-4896
NSN 6145-01-023-1526
NSN 5996-00-161-4202
NSN 6135-01-528-6896