PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1840Reactor

Pico Electronics Inc · NSN 5950-00-807-8572 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-807-8572 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-807-8572. Primary manufacturer part number: A1840.
Features
  • Reactor — FSC 5950
  • Winding Operating Current: 11.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Body Length: 0.469 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.344 INCHES MAXIMUM IN
  • Inductance Rating: 1.25 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Winding Quantity: 1 SINGLE COMPONENT
  • DC Resistance Rating in Ohms: 100.000 SINGLE COMPONENT SINGLE WINDING
  • Terminal Type and Quantity: 2 WIRE LEAD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-807-8572, 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 Pico Electronics Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-807-8572
Primary Part NumberA1840
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerPico Electronics Inc
StatusACTIVE
Winding Operating Current11.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Length0.469 INCHES MAXIMUM IN
Body Outside Diameter0.344 INCHES MAXIMUM IN
Inductance Rating1.25 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
DC Resistance Rating in Ohms100.000 SINGLE COMPONENT SINGLE WINDING
Terminal Type and Quantity2 WIRE LEAD
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Maximum Operating Temp105.0 CELSIUS DEGC
Precious Material and LocationTERMINALS GOLD
Mounting MethodTERMINAL SINGLE GROUP
Precious MaterialGOLD
Inclosure TypeHERMETICALLY SEALED
Reliability IndicatorNOT ESTABLISHED
Inductance TypeFIXED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5895-00-007-9844123212-2 INTERCHANGEABLE
Control,multiplexer
Bae Systems Information and Electronic Systems Integration Inc.
5950-00-213-6103L01196 INTERCHANGEABLE
Reactor
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
2520-00-734-84753DC3-31 INTERCHANGEABLE
Plate,clutch Adjusting
Fwd Seagrave Holdings Lp
Cross-Reference Index
Part NumberManufacturer
2553977-3 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
2553977-3 Honeywell International Inc. Dba Honeywell International (USA)
DH229 United Transformer Corp Sub of Opt Industries Inc (USA)
C331 Howell Instruments, Inc. Dba Howell Instruments Inc (USA)
MIT-227 Components Corp of America (USA)
GR845G2 Northrop Grumman Systems Corporation (USA)
A1840 Elcos (BEL)
D0T 27 United Transformer Corp Sub of Opt Industries Inc (USA)
D0T 27 Opt Industries Inc Div of Electronika Inc (USA)
19755-83 Atlantic Inertial Systems Limited (GBR)
A1840 PRIMARY Pico Electronics Inc (USA)
D0T27 United Transformer Co
Related Parts
5895-00-007-9844INTERCHANGEABLE
CONTROL,MULTIPLEXER
123212-2
5950-00-213-6103INTERCHANGEABLE
REACTOR
L01196
2520-00-734-8475INTERCHANGEABLE
PLATE,CLUTCH ADJUSTING
3DC3-31

Frequently Asked Questions

What is NSN 5950-00-807-8572?

NSN 5950-00-807-8572 is a Reactor, manufactured by Pico Electronics Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-807-8572?

NSN 5950-00-807-8572 has 12 cross-referenced part numbers: 2553977-3 (Lockheed Martin Corporation Div Rms - Mitchel Field), 2553977-3 (Honeywell International Inc. Dba Honeywell International), DH229 (United Transformer Corp Sub of Opt Industries Inc), C331 (Howell Instruments, Inc. Dba Howell Instruments Inc), MIT-227 (Components Corp of America) and 7 more.

What NSN replaces 5950-00-807-8572?

There are 3 known substitutes for 5950-00-807-8572: 5895-00-007-9844, 5950-00-213-6103, 2520-00-734-8475. Verify interchangeability with system specifications before substitution.

What are the specifications of A1840?

Key specifications for A1840: Winding Operating Current: 11.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING; Body Length: 0.469 INCHES MAXIMUM IN; Body Outside Diameter: 0.344 INCHES MAXIMUM IN; Inductance Rating: 1.25 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING. 15 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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