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 5920-00-162-8219
NSN 6130-01-212-8545
NSN 5835-00-905-7165
NSN 5910-01-556-9689
NSN 6240-01-112-7576
NSN 5965-01-395-6368
NSN 4140-01-025-1555
NSN 6110-01-234-1154
NSN 5855-01-429-8702
NSN 5985-01-144-0678
NSN 5985-00-401-5035
NSN 5910-01-220-8897