This is a wire-rope type of cable which is attached to the crane's boom tip and spools off the reeling drum that measures the boom extension through the turning of the timing belt to the extension pot
NSN 6320-00-564-2772
NSN 6620-01-381-6225
NSN 6150-01-621-2989
NSN 5925-01-422-3664
NSN 6135-01-592-8698
NSN 6135-00-196-5267
NSN 6320-00-228-5678
NSN 6645-00-620-4908
NSN 5935-01-609-8591
NSN 5985-00-725-1554
NSN 6130-01-207-1414
NSN 5999-01-230-9476