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 5975-01-448-2998
NSN 5965-00-538-4485
NSN 6650-01-231-9545
NSN 6645-01-048-3014
NSN 6220-01-617-1256
NSN 5910-01-364-0757
NSN 6220-01-063-7287
NSN 5910-01-290-2968
NSN 5985-00-827-1061
NSN 6240-01-146-2850
NSN 6620-01-387-7645
NSN 7035-01-559-3611