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1006978 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
3M · COMPONENT
PRODUCT OVERVIEW

1006978: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a 3M industrial component. Key specifications include body_width: 0.875 INCHES MAXIMUM IN, body_height: 0.828 INCHES MAXIMUM IN, body_length: 0.969 INCHES MAXIMUM 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 5950-00-657-2401, 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
1006978
NSN: 5950-00-657-2401
FSC: 5950 — Coils and Transformers
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
body_width0.875 INCHES MAXIMUM IN
body_height0.828 INCHES MAXIMUM IN
body_length0.969 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.138 INCHES MINIMUM AND 0.146 INCHES MAXIMUM SINGLE GROUP IN
mounting_facility_quantity2 SINGLE GROUP
terminal_type_and_quantity4 WIRE HOOK
winding_function_and_quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
distance_between_mounting_facility_centers0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
NSN5950-00-657-2401
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: 3M TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 1006978 MFR 3M TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
MOUNTING FACILITY QUANTITY: 2 SINGLE GROUP
•
INCLOSURE TYPE: FULLY INCLOSED
•
MOUNTING METHOD: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
•
BODY WIDTH: 0.875 INCHES MAXIMUM IN
•
BODY HEIGHT: 0.828 INCHES MAXIMUM IN
•
MOUNTING HOLE DIAMETER: 0.138 INCHES MINIMUM AND 0.146 INCHES MAXIMUM SINGLE GROUP IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
DISTANCE BETWEEN MOUNTING FACILITY CENTERS: 0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY QUANTITY2 SINGLE GROUP
INCLOSURE TYPEFULLY INCLOSED
MOUNTING METHODFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
BODY WIDTH0.875 INCHES MAXIMUM IN
BODY HEIGHT0.828 INCHES MAXIMUM IN
MOUNTING HOLE DIAMETER0.138 INCHES MINIMUM AND 0.146 INCHES MAXIMUM SINGLE GROUP IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
DISTANCE BETWEEN MOUNTING FACILITY CENTERS0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
BODY LENGTH0.969 INCHES MAXIMUM IN
RELIABILITY INDICATORNOT ESTABLISHED
OTHER ITEMS IN FSC 5950 — Coils and Transformers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5950-00-000-0146 5950-00-001-1372 5950-00-001-1386 5950-00-001-1410 5950-00-001-1411 5950-00-001-1412 5950-00-001-1413 5950-00-001-1414
SUBSTITUTES & CROSS-REFERENCES 2
436301Reference document
Same NSN cross-reference
Reference document — Secondary reference
1981430Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1006978?
1006978 is a TRANSFORMER,AUDIO FREQUENCY manufactured by 3M.
What parts can replace 1006978?
There are 2 known substitutes for 1006978: 436301, 1981430. Substitute compatibility should be verified for your specific system.
What is the NSN for 1006978?
1006978 is cataloged in the U.S. Government catalog under NSN 5950-00-657-2401. 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.