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657401 — TRANSFORMER,POWER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

657401: TRANSFORMER,POWER.

The TRANSFORMER,POWER is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, overall_width: 0.550 INCHES MAXIMUM IN, inclosure_type: OPEN, overall_height: 0.580 INCHES MAXIMUM IN, overall_length: 0.650 INCHES MAXIMUM IN, mounting_method: TERMINAL SINGLE GROUP. This part is cataloged in the U.S.

Government catalog under NSN 6515-01-139-8980, 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
657401
NSN: 6515-01-139-8980
NIINs: 011398980, 014202184
FSC: 6515 — Medical and Surgical Instruments, Equipment, and Supplies
CAGE: 55187 — SKLAR CORPORATION DBA SKLAR INSTRUMENTS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
overall_width0.550 INCHES MAXIMUM IN
inclosure_typeOPEN
overall_height0.580 INCHES MAXIMUM IN
overall_length0.650 INCHES MAXIMUM IN
mounting_methodTERMINAL SINGLE GROUP
size_designatorSIZE 1; 3.750 IN. LG SHAFT IN
frequency_rating50.0 KILOHERTZ NOMINAL SINGLE COMPONENT
special_featuresPASSIVATED
design_designationKERRISON
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp130.0 CELSIUS DEGC
NSN6515-01-139-8980
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN 657401 MFR TRANSFORMER,POWER
KEY FEATURES
•
SIZE DESIGNATOR: SIZE 1; 3.750 IN. LG SHAFT IN
•
DESIGN DESIGNATION: KERRISON
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
SIZE DESIGNATORSIZE 1; 3.750 IN. LG SHAFT IN
DESIGN DESIGNATIONKERRISON
SPECIAL FEATURESPASSIVATED
PART NAME ASSIGNED BY CONTROLLING AGENCYRONGEUR KERRISON DSGN SIZE 1 3.75 INCH LONG SHAFT PASSIVATED CRS IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
5867657401Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SK65-7401Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 657401?
657401 is a TRANSFORMER,POWER.
What parts can replace 657401?
There are 2 known substitutes for 657401: 5867657401, SK65-7401. Substitute compatibility should be verified for your specific system.
What is the NSN for 657401?
657401 is cataloged in the U.S. Government catalog under NSN 6515-01-139-8980. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.