PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

837X30Transformer,current

General Electric Co Meter Business Dept · NSN 5950-00-187-4371 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-187-4371 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-187-4371. Primary manufacturer part number: 837X30.
Features
  • Transformer,current — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Voltage: 600.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Inclosure Type: OPEN
  • Winding Operating Current: 2000.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,current, cataloged under National Stock Number 5950-00-187-4371, 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 General Electric Co Meter Business Dept. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-187-4371
Primary Part Number837X30
Item NameTransformer,current
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerGeneral Electric Co Meter Business Dept
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Winding Operating Voltage600.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity4 SINGLE GROUP
Inclosure TypeOPEN
Winding Operating Current2000.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Installation for Which DesignedINDOOR NONPORTABLE
Center to Center Distance Between Mounting Facilities Parallel to Length6.937 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length8.500 INCHES NOMINAL IN
Nondefinitive Spec/std Data3 CLASS AND NSS GRADE
Test Data Document81349-MIL-I-1361 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Width4.625 INCHES NOMINAL IN
Body Height10.156 INCHES NOMINAL IN
Winding Operating Current5.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Function and Quantity1 SECONDARY SINGLE COMPONENT
Mounting Hole Diameter0.562 INCHES NOMINAL SINGLE GROUP IN
Terminal Type and Quantity2 THREADED HOLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-00-187-4370 INTERCHANGEABLE
Transformer,current
3020-00-252-7360100-2 INTERCHANGEABLE
Chain,roller
Jeffrey Co the
Cross-Reference Index
Part NumberManufacturer
837X30 General Electric Co Meter Business Dept (USA)
837X30 Lockheed Martin Corporation Div Rms (USA)
MILI1361 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
9JNS0ABH12 General Electric Co Outdoor Breaker Business Section (USA)
324-16-030 L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation (USA)
5950PL0921407 Jednolity Indeks Materialowy - Uniform Material Index (POL)
42-3017 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
837X030000 Lockheed Martin Corporation Div Rms (USA)
G17T6722-110 General Stores Supply Office (USA)
637X30 General Electric Co Specialty Transformer Dept (USA)
Related Parts
5950-00-187-4370INTERCHANGEABLE
TRANSFORMER,CURRENT
3020-00-252-7360INTERCHANGEABLE
CHAIN,ROLLER
100-2

Frequently Asked Questions

What is NSN 5950-00-187-4371?

NSN 5950-00-187-4371 is a Transformer,current, manufactured by General Electric Co Meter Business Dept, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-187-4371?

NSN 5950-00-187-4371 has 10 cross-referenced part numbers: 837X30 (General Electric Co Meter Business Dept), 837X30 (Lockheed Martin Corporation Div Rms), MILI1361 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 9JNS0ABH12 (General Electric Co Outdoor Breaker Business Section), 324-16-030 (L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation) and 5 more.

What NSN replaces 5950-00-187-4371?

There are 2 known substitutes for 5950-00-187-4371: 5950-00-187-4370, 3020-00-252-7360. Verify interchangeability with system specifications before substitution.

What are the specifications of 837X30?

Key specifications for 837X30: Reliability Indicator: NOT ESTABLISHED; Winding Operating Voltage: 600.00 AC VOLTS MAXIMUM SINGLE COMPONENT SINGLE PRIMARY; Mounting Facility Quantity: 4 SINGLE GROUP; Inclosure Type: OPEN. 21 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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