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 5925-01-371-2876
NSN 6320-01-642-2615
NSN 5996-01-057-1981
NSN 5950-01-541-4022
NSN 6645-01-319-0006
NSN 6610-01-645-7515
NSN 6110-00-257-1446
NSN 4140-01-443-8445
NSN 6145-01-510-8667
NSN 6135-01-457-2855
NSN 5935-01-282-8318
NSN 5855-01-400-1590