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2678621 ✓ 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: 3.000 INCHES NOMINAL IN, body_height: 2.250 INCHES NOMINAL IN, body_length: 3.500 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 60.0 HERTZ NOMINAL 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 5950-00-147-9676, 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
2678621
NSN: 5950-00-147-9676
FSC: 5950
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
body_width3.000 INCHES NOMINAL IN
body_height2.250 INCHES NOMINAL IN
body_length3.500 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating60.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.164 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
impedance_rating_in_ohms300.0 MINIMUM SINGLE COMPONENT FIRST PRIMARY
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
mounting_facility_quantity4 SINGLE GROUP
terminal_type_and_quantity16 TURRET
NSN5950-00-147-9676
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 2678621 MFR TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
INCLOSURE TYPE: FULLY INCLOSED
•
IMPEDANCE RATING IN OHMS: 300.0 MINIMUM SINGLE COMPONENT FIRST PRIMARY
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
WINDING FUNCTION AND QUANTITY: 4 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
•
BODY WIDTH: 3.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INCLOSURE TYPEFULLY INCLOSED
IMPEDANCE RATING IN OHMS300.0 MINIMUM SINGLE COMPONENT FIRST PRIMARY
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
RELIABILITY INDICATORNOT ESTABLISHED
WINDING FUNCTION AND QUANTITY4 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
BODY WIDTH3.000 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.164 INCHES SINGLE GROUP IN
BODY LENGTH3.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
4879Interchangeable
interchangeable cross-reference
interchangeable
DS-934377Interchangeable
interchangeable cross-reference
interchangeable
BC3254Interchangeable
interchangeable cross-reference
interchangeable
662-0034-000Interchangeable
interchangeable cross-reference
interchangeable
37333DInterchangeable
interchangeable cross-reference
interchangeable
10-534Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2678621?
2678621 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace 2678621?
There are 20 known substitutes for 2678621: 4879, DS-934377, BC3254 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2678621?
2678621 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-147-9676. 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