Per research cage 1cc97 is oem
No other part numbers with same form, fit, and function found.
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 5930-00-147-0953
NSN 5998-00-079-0591
NSN 6105-00-252-9017
NSN 5905-00-170-5363
NSN 6620-00-084-1131
NSN 6650-01-604-9315
NSN 5910-01-572-9036
NSN 5998-01-154-1434
NSN 5910-01-417-2475
NSN 5935-01-322-8562
NSN 6150-01-151-1466
NSN 5835-00-247-0161