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 5950-00-973-4718
NSN 6130-01-055-6846
NSN 6150-00-285-2082
NSN 6645-00-296-8310
NSN 5999-00-757-7707
NSN 5930-01-388-0865
NSN 6110-01-285-5579
NSN 5996-00-106-9554
NSN 5910-01-434-2492
NSN 4140-00-144-6833
NSN 5999-01-063-0026
NSN 6145-01-407-4786