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631491 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

631491: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL, body_width: 0.875 INCHES NOMINAL IN, body_height: 1.000 INCHES NOMINAL IN, body_length: 1.031 INCHES NOMINAL IN, overall_width: 0.750 INCHES NOMINAL IN, inclosure_type: OPEN. This part is cataloged in the U.S.

Government catalog under NSN 5950-00-116-7466, 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
631491
NSN: 5950-00-116-7466
NIINs: 001167466, 014235565
FSC: 5950 — Coils and Transformers
CAGE: 22525 — INSTRUMENTS AND FLIGHT RESEARCH, INC. (USA)
SPECIFICATIONS
materialSTEEL
body_width0.875 INCHES NOMINAL IN
body_height1.000 INCHES NOMINAL IN
body_length1.031 INCHES NOMINAL IN
overall_width0.750 INCHES NOMINAL IN
inclosure_typeOPEN
overall_height1.031 INCHES NOMINAL IN
overall_length18.000 INCHES NOMINAL IN
mounting_methodTERMINAL SINGLE GROUP
frequency_rating300.0 HERTZ NOMINAL AND 15.0 KILOHERTZ NOMINAL SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
impedance_rating_in_ohms50000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
NSN5950-00-116-7466
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 631491 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
INCLOSURE TYPE: OPEN
•
MOUNTING METHOD: TERMINAL SINGLE GROUP
•
BODY WIDTH: 0.875 INCHES NOMINAL IN
•
BODY HEIGHT: 1.000 INCHES NOMINAL IN
•
MAXIMUM TRANSFORMER POWER RATING: 20.0 DECIBELS SINGLE COMPONENT
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
•
IMPEDANCE RATING IN OHMS: 50000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.031 INCHES NOMINAL IN
INCLOSURE TYPEOPEN
MOUNTING METHODTERMINAL SINGLE GROUP
BODY WIDTH0.875 INCHES NOMINAL IN
BODY HEIGHT1.000 INCHES NOMINAL IN
MAXIMUM TRANSFORMER POWER RATING20.0 DECIBELS SINGLE COMPONENT
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
IMPEDANCE RATING IN OHMS50000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
IMPEDANCE RATING IN OHMS600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
BODY LENGTH1.031 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
MT3PCReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 631491?
631491 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 631491?
There is 1 known substitute for 631491: MT3PC. Substitute compatibility should be verified for your specific system.
What is the NSN for 631491?
631491 is cataloged in the U.S. Government catalog under NSN 5950-00-116-7466. 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.