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 6150-00-159-8949
NSN 5925-00-684-6468
NSN 5950-01-626-5146
NSN 5945-01-181-5586
NSN 5945-00-138-9618
NSN 5895-01-042-0929
NSN 5999-01-326-9252
NSN 6150-01-531-2247
NSN 6110-01-501-5764
NSN 6685-01-182-2252
NSN 5930-01-186-6614
NSN 6650-01-157-8806