3.225 in.Inside dia.
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.
NSN 5975-01-094-6250
NSN 6240-00-224-5323
NSN 6130-01-175-9852
NSN 7035-01-534-7074
NSN 6130-00-917-5198
NSN 5935-01-487-3287
NSN 5960-01-292-6062
NSN 6650-01-358-2827
NSN 5915-00-928-7490
NSN 5895-01-563-9404
NSN 5950-01-126-5118
NSN 5855-01-147-4785