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Technical Data Sheet
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12-3A — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
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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 material: WOOD CASE, tire_type: SEMIPNEUMATIC, unit_type: UNCHARGED, film_width: 2.875 INCHES NOMINAL IN, camera_type: OSCILLOSCOPE, design_type: HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 6625-00-633-6247, 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
12-3A
NSN: 6625-00-633-6247
FSC: 6625
CAGE: 28569 — HICKOK WAEKON LLC (USA)
SPECIFICATIONS
materialWOOD CASE
tire_typeSEMIPNEUMATIC
unit_typeUNCHARGED
film_width2.875 INCHES NOMINAL IN
camera_typeOSCILLOSCOPE
design_typeHAND
film_length3.812 INCHES NOMINAL IN
focus_methodFOCUSING SCREEN
shutter_typeADJUSTABLE BULB OPERATED SELF-TIMING
overall_depth9.250 INCHES NOMINAL IN
overall_width16.500 INCHES NOMINAL IN
overall_length19.500 INCHES NOMINAL IN
NSN6625-00-633-6247
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 12-3A MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
FURNISHED ITEMS AND QUANTITY: CARDS TEST 500
•
INSTALLATION DESIGN: CASE
•
OPERATION METHOD: DYNAMIC MUTUAL CONDUCTANCE
•
FILAMENT VOLTAGE RATING IN VOLTS: +0.100 TO 119.900
•
MATERIAL: WOOD CASE
•
CASE SURFACE TREATMENT: PLASTIC
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITYCARDS TEST 500
INSTALLATION DESIGNCASE
OPERATION METHODDYNAMIC MUTUAL CONDUCTANCE
FILAMENT VOLTAGE RATING IN VOLTS+0.100 TO 119.900
MATERIALWOOD CASE
CASE SURFACE TREATMENTPLASTIC
OVERALL WIDTH16.500 INCHES NOMINAL IN
OVERALL LENGTH19.500 INCHES NOMINAL IN
OVERALL DEPTH9.250 INCHES NOMINAL IN
AC VOLTAGE RATING115.0 VOLTS NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
13X13261InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0F351InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1730467InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
ECG123AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
NTE123AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
X16N2526InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other
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FREQUENTLY ASKED QUESTIONS
What is 12-3A?
12-3A is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 12-3A?
There are 12 known substitutes for 12-3A: 13X13261, 0F351, 1730467 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12-3A?
12-3A is cataloged in the Federal Logistics Information System under NSN 6625-00-633-6247. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026