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 5855-01-109-1807
NSN 5925-00-764-8349
NSN 5950-00-122-4497
NSN 5998-01-250-2887
NSN 6130-00-996-9154
NSN 5935-00-267-5569
NSN 5960-01-328-8248
NSN 5895-01-195-5356
NSN 6650-01-381-2117
NSN 7035-01-393-6015
NSN 2925-00-712-8180
NSN 5915-01-028-9721