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 6650-01-154-1870
NSN 6320-00-575-6072
NSN 5960-01-539-1956
NSN 6240-00-013-4764
NSN 6150-01-014-5691
NSN 5910-01-109-2685
NSN 5960-00-871-3950
NSN 5935-00-594-6229
NSN 5915-00-522-1927
NSN 7035-00-938-1505
NSN 5925-01-634-0664
NSN 5950-01-394-6085