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 6110-01-290-5437
NSN 6610-00-288-5655
NSN 5960-00-071-0698
NSN 5895-00-240-3295
NSN 5930-01-170-5280
NSN 6685-00-189-8639
NSN 6650-01-483-2399
NSN 6685-00-450-0053
NSN 5855-01-586-6165
NSN 6145-00-951-6079
NSN 6645-00-739-6718
NSN 6645-00-862-2904