How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

1 2

Giddings & Lewis 502-03431-10 Machine Interface Board

$599.00 USD

Sale Sold out

ConditionSurplus - Untested MPN502-03431-10 Stock #0226-00634

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

Shipping Estimate

Estimated package weight: 10.0 lbs

Select your state above for a shipping estimate.

U.S. shipping, securely packaged. Ships in 1-2 Days
Questions? Real support team available before purchase
Secure checkout with trusted payment methods

A machine interface board from Giddings & Lewis, part number 502-03431-10, also cross-referenced on the PCB silkscreen as 501-04317-00. Revision 1, dated 9/87. This PC board assembly is classified as a machine interface board and is listed as discontinued by the manufacturer. The board is populated with multiple Potter & Brumfield-style relay components visible on both sides of the PCB, along with passive components including capacitors and resistors. Three edge-mount connectors with ribbon-cable-style pin headers are present along the lower edge of the board, and the assembly is mounted in a sheet metal bracket that spans the full length of the card. The PCB silkscreen references "POCC" and "& LEWIS," consistent with Giddings & Lewis machine tool control system nomenclature. This board type is associated with POCC (Programmable Open-loop Control Computer) platform machine tool control systems. MPN 502-03431-10 is the OEM-designated assembly number confirmed through US industrial surplus sources. The secondary board number 501-04317-00 also appears in associated Giddings & Lewis interface board documentation. This item has been identified and listed as discontinued by the original manufacturer.

Stock # 0226-634

View full details

Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.