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Technical Data Sheet
PartsTable / COMPONENT / 31855-12A
31855-12A ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The 31855-12A is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6620-00-051-7143, indicating validated use in U.S. government and defense logistics supply chains.

Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
31855-12A
NSN: 6620-00-051-7143
FSC: 6620
CAGE: 50992 — RANCO INC RANCO CONTROLS DIV (USA)
SPECIFICATIONS
Part Number31855-12A
NSN6620-00-051-7143
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 31855-12A TITLE COMPONENT PN 31855-12A MFR 31855-12A
KEY FEATURES
•
MOUNTING METHOD: FLUSH PANEL
•
MOUNTING HOLE QUANTITY: 4
•
CONNECTION LOCATION: BACK
•
CONNECTOR TYPE VENT: NOT PROVIDED
•
COLOR: BLACK CASE
•
MATERIAL: PLASTIC CASE
•
MOUNTING HOLE DIAMETER: 0.196 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODFLUSH PANEL
OVERALL DEPTH3.000 INCHES NOMINAL IN
MOUNTING HOLE QUANTITY4
CONNECTION LOCATIONBACK
CONNECTOR TYPE VENTNOT PROVIDED
COLORBLACK CASE
MATERIALPLASTIC CASE
MOUNTING HOLE DIAMETER0.196 INCHES NOMINAL IN
MATERIALCOPPER ALLOY ACTUATING ELEMENT
OVERALL DIAMETER3.130 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
10226A12Interchangeable
interchangeable cross-reference
interchangeable
MS28064-5Interchangeable
interchangeable cross-reference
interchangeable
MS28064T5Interchangeable
interchangeable cross-reference
interchangeable
31855-34AInterchangeable
interchangeable cross-reference
interchangeable
MILG7734Interchangeable
interchangeable cross-reference
interchangeable
AN5771-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31855-12A?
31855-12A is a 31855-12A.
What parts can replace 31855-12A?
There are 23 known substitutes for 31855-12A: 10226A12, MS28064-5, MS28064T5 and 20 more. Substitute compatibility should be verified for your specific system.
Is 31855-12A still available?
31855-12A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026