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Technical Data Sheet
PartsTable / COMPONENT / M-2558
M-2558 ✓ 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: 3.062 INCHES NOMINAL IN, body_height: 4.250 INCHES NOMINAL IN, body_length: 2.625 INCHES NOMINAL IN, hole_diameter: 0.531 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED STUD(S) SINGLE GROUP. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-578-1815, 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
M-2558
NSN: 5950-00-578-1815
FSC: 5950
CAGE: 00348 — MICROTRAN CO INC (USA)
SPECIFICATIONS
body_width3.062 INCHES NOMINAL IN
body_height4.250 INCHES NOMINAL IN
body_length2.625 INCHES NOMINAL IN
hole_diameter0.531 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating50.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.112 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
peripheral_shape_styleROUND
center_hole_shape_styleROUND
thread_quantity_per_inch40 SINGLE GROUP
NSN5950-00-578-1815
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN M-2558 MFR TRANSFORMER,POWER
KEY FEATURES
•
WINDING OPERATING CURRENT: 70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
•
WINDING OPERATING VOLTAGE: 386.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
•
BODY HEIGHT: 4.250 INCHES NOMINAL IN
•
FREQUENCY RATING: 50.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.859 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TECHNICAL CHARACTERISTICS (FLIS)
WINDING OPERATING CURRENT70.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
WINDING OPERATING VOLTAGE386.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
BODY HEIGHT4.250 INCHES NOMINAL IN
WINDING OPERATING CURRENT2.5 AMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
FREQUENCY RATING50.0 HERTZ MINIMUM AND 440.0 HERTZ MAXIMUM SINGLE COMPONENT
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.859 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
WINDING OPERATING VOLTAGE115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
WINDING OPERATING VOLTAGE6.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
301CInterchangeable
interchangeable cross-reference
interchangeable
21608Interchangeable
interchangeable cross-reference
interchangeable
90-2924-4Interchangeable
interchangeable cross-reference
interchangeable
1900-4Interchangeable
interchangeable cross-reference
interchangeable
21608P1Interchangeable
interchangeable cross-reference
interchangeable
91328AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M-2558?
M-2558 is a TRANSFORMER,POWER.
What parts can replace M-2558?
There are 11 known substitutes for M-2558: 301C, 21608, 90-2924-4 and 8 more. Substitute compatibility should be verified for your specific system.
Is M-2558 still available?
M-2558 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