PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SCD39989Transformer,power

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5950-00-256-1183 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-256-1183 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-256-1183. Primary manufacturer part number: SCD39989.
Features
  • Transformer,power — FSC 5950
  • Nominal Thread Size: 0.250 INCHES SINGLE GROUP IN
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
  • Frequency Rating: 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Body Width: 4.750 INCHES NOMINAL IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-256-1183, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-256-1183
Primary Part NumberSCD39989
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Winding Shielding MethodINTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY
Frequency Rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM SINGLE COMPONENT
Body Width4.750 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width4.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current6.0 AMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Current8.0 AMPERES AC MAXIMUM SINGLE COMPONENT THIRD SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length3.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height6.125 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Thread Quantity Per Inch20 SINGLE GROUP
Winding Operating Current350.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Body Length5.625 INCHES NOMINAL IN
Winding Operating Voltage1.20 AC KILOVOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Operating Voltage5.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Inclosure TypeHERMETICALLY SEALED WITH OIL
Winding Function and Quantity2 PRIMARY AND 3 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity12 STANDOFF INSULATOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6680-00-130-70241810-1 INTERCHANGEABLE
Indicator,sight,liquid
Ametek Inc Schutte and Koerting Div
5950-00-222-0283SCB24842 INTERCHANGEABLE
Transformer,current
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-470-049718-101 INTERCHANGEABLE
Meter
Nextiraone Solutions Llc
3020-00-623-0041 INTERCHANGEABLE
Gear Cluster
3431-01-048-548410N22 INTERCHANGEABLE
Collet,welding Torch
Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
8030-01-075-1156 INTERCHANGEABLE
Caulking Compound
5315-01-205-8970 INTERCHANGEABLE
Pin,spring
6525-01-334-947218101 INTERCHANGEABLE
Cleaner,x-Ray Film
Premier Dental Products Company
5330-01-338-7811 INTERCHANGEABLE
Gasket,spiral Wound
5930-01-376-761561Y4-148 INTERCHANGEABLE
Switch,flow
Ellis & Watts International, Llc
Cross-Reference Index
Part NumberManufacturer
SCD39989 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
18-101 Espey Mfg and Electronics Corp (USA)
Related Parts
6680-00-130-7024INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
1810-1
5950-00-222-0283INTERCHANGEABLE
TRANSFORMER,CURRENT
SCB24842
6625-00-470-0497INTERCHANGEABLE
METER
18-101
3020-00-623-0041INTERCHANGEABLE
GEAR CLUSTER
3431-01-048-5484INTERCHANGEABLE
COLLET,WELDING TORCH
10N22
8030-01-075-1156INTERCHANGEABLE
CAULKING COMPOUND
5315-01-205-8970INTERCHANGEABLE
PIN,SPRING
6525-01-334-9472INTERCHANGEABLE
CLEANER,X-RAY FILM
18101
5330-01-338-7811INTERCHANGEABLE
GASKET,SPIRAL WOUND
5930-01-376-7615INTERCHANGEABLE
SWITCH,FLOW
61Y4-148
5355-01-559-0991INTERCHANGEABLE
KNOB
520-016
5930-01-592-3874INTERCHANGEABLE
SWITCH,PRESSURE
18101

Frequently Asked Questions

What is NSN 5950-00-256-1183?

NSN 5950-00-256-1183 is a Transformer,power, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-256-1183?

NSN 5950-00-256-1183 has 2 cross-referenced part numbers: SCD39989 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 18-101 (Espey Mfg and Electronics Corp).

What NSN replaces 5950-00-256-1183?

There are 12 known substitutes for 5950-00-256-1183: 6680-00-130-7024, 5950-00-222-0283, 6625-00-470-0497 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SCD39989?

Key specifications for SCD39989: Nominal Thread Size: 0.250 INCHES SINGLE GROUP IN; Reliability Indicator: NOT ESTABLISHED; Winding Shielding Method: INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENT; Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY. 25 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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