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Technical Data Sheet
PartsTable / MRO / 4274-1
4274-1 ✓ Verified by PartsTable
Lena · 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 Lena industrial component. Key specifications include special_features: 0.563 IN. DIAMETER; INCLUDES BRUSH HOLDER INSERT 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 6625-00-722-1550, 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→ 4274-1
NSN: 6625-00-722-1550
FSC: 6625
CAGE: 11332 — GENERAL MICROWAVE CORPORATION DIV KRATOS MICROWAVE ELECTRONICS (USA)
SPECIFICATIONS
special_features0.563 IN. DIAMETER; INCLUDES BRUSH HOLDER INSERT IN
NSN6625-00-722-1550
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Lena TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 4274-1 MFR Lena TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
END SHAPE: ROUND
•
FSC APPLICATION DATA: TEST SETS,ELECTRONIC SYSTEMS,EXCEPT SPECIALLY DESIGNED
•
OVERALL DIAMETER: 0.560 INCHES NOMINAL IN
•
MOUNTING CONFIGURATION: NO. 318-24 UNF-2B THD BODY
TECHNICAL CHARACTERISTICS (FLIS)
END SHAPEROUND
OVERALL LENGTH2.360 INCHES NOMINAL IN
FSC APPLICATION DATATEST SETS,ELECTRONIC SYSTEMS,EXCEPT SPECIALLY DESIGNED
OVERALL DIAMETER0.560 INCHES NOMINAL IN
MOUNTING CONFIGURATIONNO. 318-24 UNF-2B THD BODY
END SHAPEROUND
OVERALL LENGTH2.360 INCHES NOMINAL IN
FSC APPLICATION DATATEST SETS,ELECTRONIC SYSTEMS,EXCEPT SPECIALLY DESIGNED
OVERALL DIAMETER0.560 INCHES NOMINAL IN
MOUNTING CONFIGURATIONNO. 318-24 UNF-2B THD BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
ARM-1210Interchangeable
interchangeable cross-reference
interchangeable
2741Interchangeable
interchangeable cross-reference
interchangeable
043-PA1663Interchangeable
interchangeable cross-reference
interchangeable
A.4284-AInterchangeable
interchangeable cross-reference
interchangeable
4274-1Interchangeable
interchangeable cross-reference
interchangeable
42740101Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4274-1?
4274-1 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Lena. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4274-1?
There are 11 known substitutes for 4274-1: ARM-1210, 2741, 043-PA1663 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4274-1?
4274-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-722-1550. 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