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3K1878 — TRANSFORMER,CURRENT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3K1878: TRANSFORMER,CURRENT.

The TRANSFORMER,CURRENT is a the manufacturer industrial component. Key specifications include body_width: 2.625 INCHES NOMINAL IN, body_height: 2.250 INCHES NOMINAL IN, body_length: 2.625 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, mounting_method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT. This part is cataloged in the U.S.

Government catalog under NSN 5950-00-762-2398, 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
3K1878
NSN: 5950-00-762-2398
FSC: 5950 — Coils and Transformers
CAGE: 82181 — WILLIAM SPENCER (USA)
SPECIFICATIONS
body_width2.625 INCHES NOMINAL IN
body_height2.250 INCHES NOMINAL IN
body_length2.625 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.194 INCHES NOMINAL SINGLE GROUP IN
winding_operating_current50.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity4 WIRE LEAD
winding_function_and_quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
NSN5950-00-762-2398
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,CURRENT TITLE COMPONENT PN 3K1878 MFR TRANSFORMER,CURRENT
KEY FEATURES
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
INCLOSURE TYPE: FULLY INCLOSED
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
MOUNTING METHOD: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
•
BODY WIDTH: 2.625 INCHES NOMINAL IN
•
BODY HEIGHT: 2.250 INCHES NOMINAL IN
•
MOUNTING HOLE DIAMETER: 0.194 INCHES NOMINAL SINGLE GROUP IN
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
INCLOSURE TYPEFULLY INCLOSED
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING METHODFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
BODY WIDTH2.625 INCHES NOMINAL IN
BODY HEIGHT2.250 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.194 INCHES NOMINAL SINGLE GROUP IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
INSTALLATION FOR WHICH DESIGNEDOUTDOOR NONPORTABLE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3K1878?
3K1878 is a TRANSFORMER,CURRENT.
What is the NSN for 3K1878?
3K1878 is cataloged in the U.S. Government catalog under NSN 5950-00-762-2398. 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.