Quick view Add to Cart Adjustment of De-Icer Timer Cycles, Ref 617 Document Part Number: No. 142 Number of pages: 2Part Number: No. 142Revision Date: 10-Feb-1948Description: Ref 618 - Magnetic Inspection of all No. 2 Steel Blade Shanks, Ref 619 - Differential Pressure Cut-Out Switch Electrode MSRP: Was: Now: $15.00