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 6645-01-107-5699
NSN 6220-01-446-1725
NSN 5985-00-165-3606
NSN 5895-01-086-6238
NSN 6110-01-466-0582
NSN 5998-00-554-8269
NSN 5985-00-244-1378
NSN 5996-00-787-7271
NSN 7035-01-038-9970
NSN 5945-01-643-5485
NSN 5990-01-512-9129
NSN 6220-01-460-0180