3.875 in. Od
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 5998-00-555-6318
NSN 5965-00-839-8991
NSN 6620-01-564-0571
NSN 6150-01-350-3713
NSN 6105-00-879-9786
NSN 5920-01-481-0421
NSN 5915-01-312-2215
NSN 6240-01-461-1585
NSN 5965-01-479-9155
NSN 5905-01-109-1836
NSN 4140-01-425-1725
NSN 6135-01-096-1452