PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18856-3Reactor-Transformer

Robert M. Hadley Company, Inc. · NSN 5950-01-181-1755 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-181-1755 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-181-1755. Primary manufacturer part number: 18856-3.
Features
  • Reactor-Transformer — FSC 5950
  • 6 verified cross-references
  • Primary manufacturer: Robert M. Hadley Company, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor-Transformer, cataloged under National Stock Number 5950-01-181-1755, 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 Robert M. Hadley Company, Inc.. This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameReactor-Transformer
FSC / FSG5950 — No Item Name Available (FSG 59)
ManufacturersRobert M. Hadley Company, Inc. (CAGE 72964); Magnetika Inc (CAGE 15634); Sora Power Inc. Dba Sigma Division (CAGE 55196); Magnespec Inc (CAGE 53854); Litton Systems Inc. Div Navigation Systems Division (CAGE 13973)
Technical Specifications
ParameterValue
NSN5950-01-181-1755
Primary Part Number18856-3
Item NameReactor-Transformer
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRobert M. Hadley Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-011-4381712060-31 INTERCHANGEABLE
Transformer,radio Frequency
Raytheon Company Div Rmd Strategic
4820-00-036-154613246 INTERCHANGEABLE
Diaphragm,valve,flat
Westinghouse Electric Corp
5310-00-152-566113246 INTERCHANGEABLE
Washer,flat
L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division
5330-00-218-434211148 INTERCHANGEABLE
Retainer,packing
Rps-Fl, Inc. Dba Rps Inc
5120-00-255-8180 INTERCHANGEABLE
Clamp,wire Splicing
5355-00-584-476611148 INTERCHANGEABLE
Knob
Jetronic Industries, Inc. Dba Jetronic Industries, Inc. Div Contracts
4820-00-593-9881011148 INTERCHANGEABLE
Valve Seat Cap
Taylor Enterprises of VA, Llc Dba Taylor Freezer Sales Company Div Taylor Enterprises of VA Llc D/b/a Taylor Freezer Sales Co
4730-00-595-025111711 INTERCHANGEABLE
Tee,pipe
Brinkley Technology Group Llc Dba Hercules Manufacturing
5330-00-799-915911148 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
5365-01-139-4598 INTERCHANGEABLE
Spacer Round
Cross-Reference Index
Part NumberManufacturer
18856-3 PRIMARY Robert M. Hadley Company, Inc. (USA)
WE-3389 Magnetika Inc (USA)
11148 Sora Power Inc. Dba Sigma Division (USA)
13246 Magnespec Inc (USA)
865407-0001 Litton Systems Inc. Div Navigation Systems Division (USA)
WE-3389 Wems Electronics Transformer Group (USA)
Related Parts
5950-00-011-4381INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
712060-31
4820-00-036-1546INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
13246
5310-00-152-5661INTERCHANGEABLE
WASHER,FLAT
13246
5330-00-218-4342INTERCHANGEABLE
RETAINER,PACKING
11148
5120-00-255-8180INTERCHANGEABLE
CLAMP,WIRE SPLICING
5355-00-584-4766INTERCHANGEABLE
KNOB
11148
4820-00-593-9881INTERCHANGEABLE
VALVE SEAT CAP
011148
4730-00-595-0251INTERCHANGEABLE
TEE,PIPE
11711
5330-00-799-9159INTERCHANGEABLE
GASKET
11148
5365-01-139-4598INTERCHANGEABLE
SPACER ROUND
5962-01-322-0179INTERCHANGEABLE
MICROCKT,PROM,SPECI
188563
6240-01-344-4825INTERCHANGEABLE
LAMP,METAL HALIDE
MVT325/I/U/WM

Frequently Asked Questions

What is NSN 5950-01-181-1755?

NSN 5950-01-181-1755 is a Reactor-Transformer, manufactured by Robert M. Hadley Company, Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-181-1755?

NSN 5950-01-181-1755 has 6 cross-referenced part numbers: 18856-3 (Robert M. Hadley Company, Inc.), WE-3389 (Magnetika Inc), 11148 (Sora Power Inc. Dba Sigma Division), 13246 (Magnespec Inc), 865407-0001 (Litton Systems Inc. Div Navigation Systems Division) and 1 more.

What NSN replaces 5950-01-181-1755?

There are 12 known substitutes for 5950-01-181-1755: 5950-00-011-4381, 4820-00-036-1546, 5310-00-152-5661 and 9 more. Verify interchangeability with system specifications before substitution.

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