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Technical Data Sheet
4538 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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 furnished_items: PLASTIC TRAY, nonsupply_items_and_quantities: CONTAINS 1 EA CHROME PLATED; 3/8 IN. FEMALE SQ DRIVE EXTENSIONS SIZE 1.5, 3, 4, 6, 8, 10, 18 AND 24 IN.

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 6625-01-331-6390, 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
MRO MRO_GENERAL 4538
NSN: 6625-01-331-6390
FSC: 6625
CAGE: 24561 — AMETEK, INC. DBA AMETEK POWER INSTRUMENTS (USA)
SPECIFICATIONS
furnished_itemsPLASTIC TRAY
component_quantity8
nonsupply_items_and_quantitiesCONTAINS 1 EA CHROME PLATED; 3/8 IN. FEMALE SQ DRIVE EXTENSIONS SIZE 1.5, 3, 4, 6, 8, 10, 18 AND 24 IN. IN
NSN6625-01-331-6390
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 4538 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
CONNECTION TYPE: TERMINAL BLOCK W/SCREW TOP
CONNECTION CONTACT TYPE AND QUANTITY: 4 TERMINAL BLOCK W/SCREW EXTERNAL
EXTERNAL AC OPERATING VOLTAGE IN VOLTS: 115.0 NOMINAL SINGLE VOLTAGE
CIRCUIT CONSTRUCTION TYPE: SOLID STATE
PHASE: SINGLE
FREQUENCY PER CHANNEL: 55.0 HERTZ MINIMUM INPUT CHANNEL AND 65.0 HERTZ MAXIMUM INPUT CHANNEL
SIGNAL VOLTAGE RATING PER CHANNEL: 150.000 VOLTS MAXIMUM INPUT
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETERMINAL BLOCK W/SCREW TOP
CONNECTION CONTACT TYPE AND QUANTITY4 TERMINAL BLOCK W/SCREW EXTERNAL
EXTERNAL AC OPERATING VOLTAGE IN VOLTS115.0 NOMINAL SINGLE VOLTAGE
CIRCUIT CONSTRUCTION TYPESOLID STATE
PHASESINGLE
SPECIAL FEATURESPORM 0.25 PCT ACCURACY
FREQUENCY PER CHANNEL55.0 HERTZ MINIMUM INPUT CHANNEL AND 65.0 HERTZ MAXIMUM INPUT CHANNEL
SIGNAL VOLTAGE RATING PER CHANNEL150.000 VOLTS MAXIMUM INPUT
SUPPLEMENTARY FEATURES55 TO 65 HZ CALIBRATING INPUT
SIGNAL DATA TYPE PER CHANNELINPUT CHANNEL RANGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
91678Interchangeable
interchangeable cross-reference
interchangeable
05-2305Interchangeable
interchangeable cross-reference
interchangeable
467738CHANGEBInterchangeable
interchangeable cross-reference
interchangeable
4538Interchangeable
interchangeable cross-reference
interchangeable
57B126-1-16GInterchangeable
interchangeable cross-reference
interchangeable
C233275-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4538?
4538 is a TRANSFORMER,AUDIO FREQUENCY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4538?
There are 13 known substitutes for 4538: 91678, 05-2305, 467738CHANGEB and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4538?
4538 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-01-331-6390. This indicates validated use in U.S. government and defense supply chains.
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