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Truth Hardware 50.00 / 50.50 Maxim & Encore Single-Arm Tangential Casement Operator (45251) Engineering Diagram
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SPECFOUNDRY SKU: SF-WIN-102 · BRAND REF: Truth Hardware / AmesburyTruth

Truth Hardware 50.00 / 50.50 Maxim & Encore Single-Arm Tangential Casement Operator (45251)

Stamped Casting / OEM Numbers: 50.00 50.50 45251 45252 31260 36-408

Compatible Units: Truth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe)

Critical Dimensions & Spec: 9-1/2" hardened steel arm; rear/sill 3-hole mount; 33% reduced crank torque gearing; Tango/Encore folding handle spline

$59.99
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Pre-Order Dimensional Verification Checklist

OEM Cross-Reference & Stamped Casting Number Table

Use this cross-reference table to confirm that the number stamped or printed on your original hardware or circuit board corresponds to SpecFoundry SKU SF-WIN-102:

Stamped / OEM Part Number Manufacturer / System Brand Compatible Models & Years SpecFoundry Replacement SKU
50.00Truth Hardware / AmesburyTruthTruth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe)Direct Match (SF-WIN-102)
50.50Truth Hardware / AmesburyTruthTruth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe)Direct Match (SF-WIN-102)
45251Truth Hardware / AmesburyTruthTruth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe)Direct Match (SF-WIN-102)
45252Truth Hardware / AmesburyTruthTruth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe)Direct Match (SF-WIN-102)
31260Truth Hardware / AmesburyTruthTruth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe)Direct Match (SF-WIN-102)
36-408Truth Hardware / AmesburyTruthTruth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe)Direct Match (SF-WIN-102)

Common Failure Symptoms Solved by SF-WIN-102

Technicians and property owners typically replace 50.50 when experiencing one or more of the following failure modes:

  • Window sash stops 1 inch short of locking reach
  • Bent 9-1/2" operator arm after high-wind gust
  • Corroded worm gear inside Maxim 50.00 / 50.50 sealed housing

Step-by-Step Dimensional Verification & Installation Notes

Remove snap-on operator cover and folding handle. Unscrew rear-mount or sill-mount fasteners, slide nylon shoe out of sash track, and transfer snap cover onto new 50.50 operator.

Related Technical Guide: Truth Hardware Casement Window Operator Stamped Casting Number Identification Guide →

Frequently Asked Technical Questions (50.50)

Where is the casting or OEM part number (50.00 / 50.50 / 45251) stamped on this part?

On Truth Hardware / AmesburyTruth assemblies, look for the stamped or die-cast numbers (50.00, 50.50, 45251, 45252, 31260, 36-408) on the underside of the metal housing, along the link arm, on the stainless hinge track, or printed on the circuit board/valve label. Note that casting numbers identify the housing casting, so always confirm critical dimensions (9-1/2" hardened steel arm; rear/sill 3-hole mount; 33% reduced crank torque gearing; Tango/Encore folding handle spline) as well.

Does SpecFoundry SKU SF-WIN-102 directly replace OEM part 50.50 (50.00, 50.50, 45251, 45252, 31260, 36-408)?

Yes. SF-WIN-102 is verified to match the mounting footprint, electrical/mechanical ratings, and dimensional envelope of Truth Hardware / AmesburyTruth 50.00, 50.50, 45251, 45252, 31260, 36-408 used on Truth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe).

What measurements should I verify before ordering SF-WIN-102?

Before ordering, verify: (1) Stamped or OEM code matches one of 50.00, 50.50, 45251, 45252, 31260, 36-408; (2) Dimensional spec matches: 9-1/2" hardened steel arm; rear/sill 3-hole mount; 33% reduced crank torque gearing; Tango/Encore folding handle spline; and (3) Application matches: Truth Maxim 50-Series & Encore Low-Profile Casement Windows (Milgard, Marvin Integrity, Andersen 400 Series, Kolbe).

How fast does SF-WIN-102 ship and what payment methods are accepted?

SF-WIN-102 ships within 1–2 business days from our US warehouse network. Flat-rate US Ground shipping is $8.95, or FREE on orders of $150+. You can check out online immediately via PayPal, Venmo, Credit/Debit Card, or request an Instant Card Payment Link / Net-30 Commercial PO Invoice.

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