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Technical Data Sheet
T-3979 ✓ 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 ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL LOCATION NOT OTHERWISE SPECIFIED, body_shape: ROUND, design_type: DRY, coolant_type: AIR, inlet_location: LOCATED ON SIDE OF BODY, muffler_design: STRAIGHT THROUGH W/BAFFLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2990-00-761-8957, 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
T-3979
NSN: 2990-00-761-8957
FSC: 2990
CAGE: 76700 — CUMMINS FILTRATION INC. (USA)
SPECIFICATIONS
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
body_shapeROUND
design_typeDRY
coolant_typeAIR
tube_quantity1
inlet_locationLOCATED ON SIDE OF BODY
muffler_designSTRAIGHT THROUGH W/BAFFLE
overall_length17.000 INCHES NOMINAL IN
outlet_locationLOCATED ON SIDE OF BODY
overall_diameter5.625 INCHES NOMINAL IN
operating_positionUNIVERSAL
inlet_connection_typeUNTHREADED SINGLE INLET
NSN2990-00-761-8957
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER ASSEMBLY TITLE COMPONENT PN T-3979 MFR TRANSFORMER ASSEMBLY
KEY FEATURES
INLET CONNECTION TYPE: UNTHREADED SINGLE INLET
MUFFLER DESIGN: STRAIGHT THROUGH W/BAFFLE
OVERALL DIAMETER: 5.625 INCHES NOMINAL IN
OPERATING POSITION: UNIVERSAL
OUTLET INSIDE DIAMETER: 2.000 INCHES NOMINAL FIRST OUTLET IN
DESIGN TYPE: DRY
BODY SHAPE: ROUND
COOLANT TYPE: AIR
TECHNICAL CHARACTERISTICS (FLIS)
INLET CONNECTION TYPEUNTHREADED SINGLE INLET
MUFFLER DESIGNSTRAIGHT THROUGH W/BAFFLE
OVERALL DIAMETER5.625 INCHES NOMINAL IN
OPERATING POSITIONUNIVERSAL
OUTLET INSIDE DIAMETER2.000 INCHES NOMINAL FIRST OUTLET IN
DESIGN TYPEDRY
BODY SHAPEROUND
COOLANT TYPEAIR
TUBE QUANTITY1
INLET LOCATIONLOCATED ON SIDE OF BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
22397VInterchangeable
interchangeable cross-reference
interchangeable
3979Interchangeable
interchangeable cross-reference
interchangeable
D3-425MD1Interchangeable
interchangeable cross-reference
interchangeable
2810H21-014-3BInterchangeable
interchangeable cross-reference
interchangeable
8819Interchangeable
interchangeable cross-reference
interchangeable
115045Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is T-3979?
T-3979 is a TRANSFORMER ASSEMBLY.
What parts can replace T-3979?
There are 21 known substitutes for T-3979: 22397V, 3979, D3-425MD1 and 18 more. Substitute compatibility should be verified for your specific system.
Is T-3979 still available?
T-3979 is currently cancelled.
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