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A6634 ✓ Verified by PartsTable
— · 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: 0.562 INCHES NOMINAL IN, body_height: 1.281 INCHES NOMINAL IN, body_length: 0.844 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED STUD(S) SINGLE GROUP, frequency_rating: 4.0 KILOHERTZ MINIMUM AND 64.0 KILOHERTZ MAXIMUM SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-091-9280, 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
A6634
NSN: 5977-00-091-9280
FSC: 5977
CAGE: 07639 — GE AVIATION SYSTEMS LLC DBA GE AVIATION SYSTEMS LLC (USA)
SPECIFICATIONS
body_width0.562 INCHES NOMINAL IN
body_height1.281 INCHES NOMINAL IN
body_length0.844 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating4.0 KILOHERTZ MINIMUM AND 64.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
nominal_thread_size0.112 INCHES SINGLE GROUP IN
transformer_functionINPUT
reliability_indicatorNOT ESTABLISHED
impedance_rating_in_ohms300.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
thread_quantity_per_inch40 SINGLE GROUP
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
NSN5977-00-091-9280
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN A6634 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: PHOSPHOR BRONZE; TINNED FINISH; O/A LG 0.484 IN.; O/A THK 0.125 IN.; ID 0.281 IN. IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPHOSPHOR BRONZE; TINNED FINISH; O/A LG 0.484 IN.; O/A THK 0.125 IN.; ID 0.281 IN. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
SCD62806Interchangeable
interchangeable cross-reference
interchangeable
M655C-2TInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A6634?
A6634 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace A6634?
There are 2 known substitutes for A6634: SCD62806, M655C-2T. Substitute compatibility should be verified for your specific system.
What is the NSN for A6634?
A6634 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5977-00-091-9280. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026