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Technical Data Sheet
A-1-957 ✓ 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: 2.312 INCHES NOMINAL IN, body_height: 3.656 INCHES NOMINAL IN, body_length: 2.718 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, overall_height: 4.093 INCHES NOMINAL IN, overall_length: 3.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-189-6619, 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
A-1-957
NSN: 5950-00-189-6619
FSC: 5950
CAGE: 74042 — MERIT COIL AND TRANSFORMER CORP (USA)
SPECIFICATIONS
body_width2.312 INCHES NOMINAL IN
body_height3.656 INCHES NOMINAL IN
body_length2.718 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height4.093 INCHES NOMINAL IN
overall_length3.375 INCHES NOMINAL IN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating100.0 HERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
special_featuresFOILAGE SUBDUED
attachment_methodHOOK FASTENER TAPE
features_providedEMBROIDERED
design_designation73RD ARMY BAND
NSN5950-00-189-6619
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN A-1-957 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
MOUNTING METHOD: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
INCLOSURE TYPE: FULLY INCLOSED
IMPEDANCE RATING IN OHMS: 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
FREQUENCY RATING: 100.0 HERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
BODY LENGTH: 2.718 INCHES NOMINAL IN
BODY WIDTH: 2.312 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
INCLOSURE TYPEFULLY INCLOSED
IMPEDANCE RATING IN OHMS600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
FREQUENCY RATING100.0 HERTZ MINIMUM AND 5.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
BODY LENGTH2.718 INCHES NOMINAL IN
BODY WIDTH2.312 INCHES NOMINAL IN
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
OVERALL LENGTH3.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
CB22Interchangeable
interchangeable cross-reference
interchangeable
CCK21Interchangeable
interchangeable cross-reference
interchangeable
CB22-2-50Interchangeable
interchangeable cross-reference
interchangeable
A-1-957Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-1-957?
A-1-957 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace A-1-957?
There are 5 known substitutes for A-1-957: CB22, CCK21, CB22-2-50 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-1-957?
A-1-957 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-189-6619. This indicates validated use in U.S. government and defense supply chains.
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