Is made up of the followimg threeitems 4502 cervical pivot, 4506 short thoracic pivot and the 4510 lumbar pivot
No other part numbers with same form, fit, and function found.
NSN 6320-01-271-0247
NSN 6135-01-357-0621
NSN 5985-01-038-7038
NSN 6150-00-596-8766
NSN 4140-01-065-0314
NSN 6685-00-393-4192
NSN 5960-00-846-6619
NSN 6145-01-420-5513
NSN 6645-01-554-2871
NSN 6650-01-633-9147
NSN 5975-01-223-5387
NSN 6105-01-324-4668