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 6650-01-397-1925
NSN 5915-01-486-5377
NSN 6105-01-357-3705
NSN 6620-00-905-8530
NSN 5985-01-121-7457
NSN 5985-01-260-9282
NSN 6610-00-956-4464
NSN 4140-00-032-5739
NSN 5910-00-465-5400
NSN 5965-01-591-8985
NSN 5998-00-967-2500
NSN 6130-00-790-0071