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 5930-01-284-6278
NSN 4140-01-415-7988
NSN 5855-01-312-5160
NSN 5895-01-004-2078
NSN 6685-01-272-1868
NSN 5950-00-156-2220
NSN 5895-01-600-1729
NSN 5930-01-447-2030
NSN 5915-01-625-3376
NSN 2925-01-506-6975
NSN 5965-01-495-9711
NSN 6135-01-035-1871