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1981418 ✓ 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,POWER is a the manufacturer industrial component. Key specifications include body_width: 1.953 INCHES MAXIMUM IN, body_height: 1.797 INCHES MAXIMUM IN, body_length: 2.172 INCHES MAXIMUM IN, inclosure_type: FULLY INCLOSED, mounting_method: THREADED HOLE(S) SINGLE GROUP, frequency_rating: 400.0 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 5950-00-681-6289, 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
1981418
NSN: 5950-00-681-6289
FSC: 5950
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
body_width1.953 INCHES MAXIMUM IN
body_height1.797 INCHES MAXIMUM IN
body_length2.172 INCHES MAXIMUM IN
inclosure_typeFULLY INCLOSED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.164 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS DEGC
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_voltage2.47 AC VOLTS NOMINAL AND 6.09 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
mounting_facility_quantity4 SINGLE GROUP
NSN5950-00-681-6289
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN 1981418 MFR TRANSFORMER,POWER
KEY FEATURES
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
WINDING OPERATING VOLTAGE: 2.47 AC VOLTS NOMINAL AND 6.09 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
TERMINAL TYPE AND QUANTITY: 8 WIRE HOOK
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.328 INCHES MINIMUM AND 1.422 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
MAXIMUM OPERATING TEMP: 105.0 CELSIUS DEGC
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
TECHNICAL CHARACTERISTICS (FLIS)
RELIABILITY INDICATORNOT ESTABLISHED
WINDING OPERATING VOLTAGE2.47 AC VOLTS NOMINAL AND 6.09 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.234 INCHES MINIMUM AND 1.266 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
TERMINAL TYPE AND QUANTITY8 WIRE HOOK
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.328 INCHES MINIMUM AND 1.422 INCHES MAXIMUM SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MAXIMUM OPERATING TEMP105.0 CELSIUS DEGC
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING METHODTHREADED HOLE(S) SINGLE GROUP
INCLOSURE TYPEFULLY INCLOSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
250615Interchangeable
interchangeable cross-reference
interchangeable
2794Interchangeable
interchangeable cross-reference
interchangeable
151R4Interchangeable
interchangeable cross-reference
interchangeable
D-4212Interchangeable
interchangeable cross-reference
interchangeable
A56667Interchangeable
interchangeable cross-reference
interchangeable
3016T84P01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1981418?
1981418 is a TRANSFORMER,POWER.
What parts can replace 1981418?
There are 14 known substitutes for 1981418: 250615, 2794, 151R4 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1981418?
1981418 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-681-6289. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026