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MIL-T-27/173 — Technical Data Sheet

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— · 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,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include body_width: 0.260 INCHES NOMINAL IN, body_height: 0.260 INCHES NOMINAL IN, body_length: 0.260 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, overall_length: 1.250 INCHES MAXIMUM IN, mounting_method: TERMINAL SINGLE GROUP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-128-9950, 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
MIL-T-27/173
NSN: 5950-01-128-9950
FSC: 5950
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_width0.260 INCHES NOMINAL IN
body_height0.260 INCHES NOMINAL IN
body_length0.260 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_length1.250 INCHES MAXIMUM IN
mounting_methodTERMINAL SINGLE GROUP
frequency_rating300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
overall_diameter0.260 INCHES NOMINAL IN
precious_materialGOLD
body_outside_diameter0.260 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS DEGC
NSN5950-01-128-9950
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN MIL-T-27/173 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
TERMINAL TYPE AND QUANTITY: 7 WIRE LEAD
•
FREQUENCY RATING: 300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
•
SPECIFICATION/STANDARD DATA: 81349-MIL-T-27/173 GOVERNMENT SPECIFICATION
•
IMPEDANCE RATING IN OHMS: 400.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
•
BODY WIDTH: 0.260 INCHES NOMINAL IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
RELIABILITY INDICATORNOT ESTABLISHED
TERMINAL TYPE AND QUANTITY7 WIRE LEAD
FREQUENCY RATING300.0 HERTZ MINIMUM AND 250.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
SPECIFICATION/STANDARD DATA81349-MIL-T-27/173 GOVERNMENT SPECIFICATION
IMPEDANCE RATING IN OHMS400.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
BODY WIDTH0.260 INCHES NOMINAL IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
IMPEDANCE RATING IN OHMS100.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
TEST DATA DOCUMENT81349-MIL-T-27 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
BODY LENGTH0.260 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
M27/173-02Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-27/173Interchangeable
interchangeable cross-reference
interchangeable
M27/173-13Interchangeable
interchangeable cross-reference
interchangeable
M27/173-07Interchangeable
interchangeable cross-reference
interchangeable
M27/173-11Interchangeable
interchangeable cross-reference
interchangeable
M27/173-04Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-T-27/173?
MIL-T-27/173 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace MIL-T-27/173?
There are 9 known substitutes for MIL-T-27/173: M27/173-02, MIL-PRF-27/173, M27/173-13 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-T-27/173?
MIL-T-27/173 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-01-128-9950. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026