PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

681593Reactor

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5950-00-547-8304 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-547-8304 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-547-8304. Primary manufacturer part number: 681593.
Features
  • Reactor — FSC 5950
  • Terminal Type and Quantity: 3 TAB, SOLDER LUG
  • Distance Between Mounting Facility Centers: 1.575 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inclosure Type: FULLY INCLOSED
  • Inductance Type: FIXED
  • Body Width: 1.141 INCHES MAXIMUM IN
  • Body Length: 1.625 INCHES MAXIMUM IN
  • Reliability Indicator: NOT ESTABLISHED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-547-8304, 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 Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 15 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
NSN5950-00-547-8304
Primary Part Number681593
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Terminal Type and Quantity3 TAB, SOLDER LUG
Distance Between Mounting Facility Centers1.575 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeFULLY INCLOSED
Inductance TypeFIXED
Body Width1.141 INCHES MAXIMUM IN
Body Length1.625 INCHES MAXIMUM IN
Reliability IndicatorNOT ESTABLISHED
Body Height1.266 INCHES MAXIMUM IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Winding Quantity1 SINGLE COMPONENT
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
DC Resistance Rating in Ohms3.600 SINGLE COMPONENT SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-114-08991477 INTERCHANGEABLE
Valve,flow Control
Alter Harry Co the Div of T E C
4210-00-117-00550042-0P-5-1-14-002 INTERCHANGEABLE
Bracket,clamping
Akron Brass Company
6240-00-155-7964B19-5 INTERCHANGEABLE
Lamp,incandescent
Raytheon Company Dba Raytheon Co
5999-00-212-48201816A INTERCHANGEABLE
Arm,pick-Up
Naval Inventory Control Point Mechanicsburg
5940-00-259-7941 INTERCHANGEABLE
Terminal,lug
5930-00-738-13131477 INTERCHANGEABLE
Switch,rotary
Janco Corporation Dba Janco Corp Div Mason Controls
4720-00-782-54541477 INTERCHANGEABLE
Hose Assembly,metallic
Page Chester Ltd Dba Cooperative Industries Div Cooperative Industries Aerospace Defense
4810-00-875-31931477 INTERCHANGEABLE
Piston,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5970-01-033-95961477 INTERCHANGEABLE
Insulator,plate
Contraves Inc
9340-01-067-33371477 INTERCHANGEABLE
Window,observation
Robert H Wager Co Inc
Cross-Reference Index
Part NumberManufacturer
681593 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1477 Precision Electronics, Inc (USA)
Related Parts
4820-00-114-0899INTERCHANGEABLE
VALVE,FLOW CONTROL
1477
4210-00-117-0055INTERCHANGEABLE
BRACKET,CLAMPING
0042-0P-5-1-14-002
6240-00-155-7964INTERCHANGEABLE
LAMP,INCANDESCENT
B19-5
5999-00-212-4820INTERCHANGEABLE
ARM,PICK-UP
1816A
5940-00-259-7941INTERCHANGEABLE
TERMINAL,LUG
5930-00-738-1313INTERCHANGEABLE
SWITCH,ROTARY
1477
4720-00-782-5454INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
1477
4810-00-875-3193INTERCHANGEABLE
PISTON,VALVE
1477
5970-01-033-9596INTERCHANGEABLE
INSULATOR,PLATE
1477
9340-01-067-3337INTERCHANGEABLE
WINDOW,OBSERVATION
1477
5365-01-084-7986INTERCHANGEABLE
RING,SUPPORTING
DV-3-5
5365-01-084-8021INTERCHANGEABLE
RING,SECURING
1477-2

Frequently Asked Questions

What is NSN 5950-00-547-8304?

NSN 5950-00-547-8304 is a Reactor, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-547-8304?

NSN 5950-00-547-8304 has 2 cross-referenced part numbers: 681593 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1477 (Precision Electronics, Inc).

What NSN replaces 5950-00-547-8304?

There are 12 known substitutes for 5950-00-547-8304: 4820-00-114-0899, 4210-00-117-0055, 6240-00-155-7964 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 681593?

Key specifications for 681593: Terminal Type and Quantity: 3 TAB, SOLDER LUG; Distance Between Mounting Facility Centers: 1.575 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Inclosure Type: FULLY INCLOSED; Inductance Type: FIXED. 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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