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PartsTable / COMPONENT / PEI 6556
PEI 6556 ✓ 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: 2.313 INCHES NOMINAL IN, body_height: 4.563 INCHES NOMINAL IN, body_length: 3.813 INCHES NOMINAL IN, inclosure_type: PARTIALLY INCLOSED, DOUBLE SHELL, mounting_method: THREADED HOLE(S) SINGLE GROUP, nominal_thread_size: 0.138 INCHES SINGLE GROUP 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 5950-00-389-3703, 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
PEI 6556
NSN: 5950-00-389-3703
FSC: 5950
CAGE: 13483 — PRECISION ELECTRONICS, INC (USA)
SPECIFICATIONS
body_width2.313 INCHES NOMINAL IN
body_height4.563 INCHES NOMINAL IN
body_length3.813 INCHES NOMINAL IN
inclosure_typePARTIALLY INCLOSED, DOUBLE SHELL
mounting_methodTHREADED HOLE(S) SINGLE GROUP
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_voltage7.20 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
mounting_facility_quantity3 SINGLE GROUP
terminal_type_and_quantity12 WIRE HOOK
winding_function_and_quantity1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
NSN5950-00-389-3703
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSFORMER,POWER TITLE COMPONENT PN PEI 6556 MFR TRANSFORMER,POWER
KEY FEATURES
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
•
BODY LENGTH: 3.813 INCHES NOMINAL IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
•
WINDING OPERATING VOLTAGE: 7.20 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO THE BASE OF AN ISOSCELES TRIANGLE: 2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
NOMINAL THREAD SIZE: 0.138 INCHES SINGLE GROUP IN
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
MOUNTING FACILITY QUANTITY: 3 SINGLE GROUP
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
BODY LENGTH3.813 INCHES NOMINAL IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
WINDING OPERATING VOLTAGE7.20 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO THE BASE OF AN ISOSCELES TRIANGLE2.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
NOMINAL THREAD SIZE0.138 INCHES SINGLE GROUP IN
RELIABILITY INDICATORNOT ESTABLISHED
MOUNTING FACILITY QUANTITY3 SINGLE GROUP
BODY HEIGHT4.563 INCHES NOMINAL IN
BODY WIDTH2.313 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
SM-C-2001898Interchangeable
interchangeable cross-reference
interchangeable
SM-C-280547Interchangeable
interchangeable cross-reference
interchangeable
SM-C-199651Interchangeable
interchangeable cross-reference
interchangeable
22508-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PEI 6556?
PEI 6556 is a TRANSFORMER,POWER.
What parts can replace PEI 6556?
There are 4 known substitutes for PEI 6556: SM-C-2001898, SM-C-280547, SM-C-199651 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PEI 6556?
PEI 6556 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-389-3703. 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