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 6685-00-792-9032
NSN 5835-01-471-5848
NSN 6320-01-366-5157
NSN 6620-01-265-0632
NSN 6220-01-564-9200
NSN 2925-01-604-8984
NSN 5910-01-423-1051
NSN 4140-01-626-9210
NSN 5950-00-869-1169
NSN 5975-01-355-3169
NSN 5920-00-092-8729
NSN 6150-01-191-9239