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Technical Data Sheet
PartsTable / COMPONENT / 1M131-1
1M131-1 ✓ 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 TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include body_width: 1.850 INCHES MAXIMUM IN, body_height: 2.020 INCHES MAXIMUM IN, body_length: 2.150 INCHES MAXIMUM IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-189-3100, 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
1M131-1
NSN: 5950-00-189-3100
FSC: 5950
CAGE: 22915 — NORTHROP GRUMMAN CORP ELECTRONIC SYSTEMS DEFENSIVE SYSTEM DIV (USA)
SPECIFICATIONS
body_width1.850 INCHES MAXIMUM IN
body_height2.020 INCHES MAXIMUM IN
body_length2.150 INCHES MAXIMUM IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
thread_quantity_per_inch32 SINGLE GROUP
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_shielding_methodINTERNAL SHIELD GROUNDED TO INCLOSURE AND BROUGHT OUT TO TERMINAL SINGLE COMPONENT
winding_operating_voltage22.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
NSN5950-00-189-3100
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN 1M131-1 MFR TRANSFORMER,POWER
KEY FEATURES
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
INCLOSURE TYPE: HERMETICALLY SEALED
•
NOMINAL THREAD SIZE: 0.138 INCHES SINGLE GROUP IN
•
BODY LENGTH: 2.150 INCHES MAXIMUM IN
•
WINDING OPERATING VOLTAGE: 50.70 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
•
TERMINAL TYPE AND QUANTITY: 9 TAB, SOLDER LUG
•
MOUNTING METHOD: THREADED HOLE(S) SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
INCLOSURE TYPEHERMETICALLY SEALED
NOMINAL THREAD SIZE0.138 INCHES SINGLE GROUP IN
BODY LENGTH2.150 INCHES MAXIMUM IN
WINDING OPERATING VOLTAGE50.70 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
TERMINAL TYPE AND QUANTITY9 TAB, SOLDER LUG
WINDING OPERATING VOLTAGE115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
MOUNTING METHODTHREADED HOLE(S) SINGLE GROUP
RELIABILITY INDICATORNOT ESTABLISHED
BODY HEIGHT2.020 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1251-3Interchangeable
interchangeable cross-reference
interchangeable
A31-179Interchangeable
interchangeable cross-reference
interchangeable
MB352-4AInterchangeable
interchangeable cross-reference
interchangeable
7B280Interchangeable
interchangeable cross-reference
interchangeable
816-2Interchangeable
interchangeable cross-reference
interchangeable
4369502-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1M131-1?
1M131-1 is a TRANSFORMER,POWER.
What parts can replace 1M131-1?
There are 14 known substitutes for 1M131-1: 1251-3, A31-179, MB352-4A and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1M131-1?
1M131-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-189-3100. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026