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 5935-01-239-2102
NSN 5975-01-130-8501
NSN 5925-01-337-9359
NSN 6620-01-358-7531
NSN 6240-00-560-5426
NSN 6620-00-758-5233
NSN 4140-01-409-1764
NSN 5990-01-043-7100
NSN 7035-01-510-8787
NSN 5855-00-922-6459
NSN 5905-01-442-3473
NSN 5930-01-130-8493