PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6977Saturable Reactor

Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems · NSN 5950-00-586-6954 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-586-6954 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-586-6954. Primary manufacturer part number: 6977.
Features
  • Saturable Reactor — FSC 5950
  • Thread Quantity Per Inch: 20 SINGLE GROUP
  • Winding Function and Quantity: 2 PRIMARY AND 2 CONTROL SINGLE COMPONENT
  • DC Resistance Rating in Ohms: 60.760 SINGLE COMPONENT FIRST CONTROL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Nominal Thread Size: 0.258 INCHES SINGLE GROUP IN
  • Winding Operating Voltage: 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Saturable Reactor, cataloged under National Stock Number 5950-00-586-6954, 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 Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems. Government technical data includes 12 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
NSN5950-00-586-6954
Primary Part Number6977
Item NameSaturable Reactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerOeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
StatusACTIVE
Thread Quantity Per Inch20 SINGLE GROUP
Winding Function and Quantity2 PRIMARY AND 2 CONTROL SINGLE COMPONENT
DC Resistance Rating in Ohms60.760 SINGLE COMPONENT FIRST CONTROL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Mounting Facility Quantity4 SINGLE GROUP
Nominal Thread Size0.258 INCHES SINGLE GROUP IN
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
DC Resistance Rating in Ohms30.750 SINGLE COMPONENT SECOND CONTROL
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Terminal Type and Quantity8 TAB, SOLDER LUG
Inclosure TypeHERMETICALLY SEALED
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-0301383 INTERCHANGEABLE
Cup,tapered Roller Bearing
Nsk Corp Bearing Div
2815-00-273-04273306568 INTERCHANGEABLE
Ring,piston
Hatch & Kirk, Inc.
5315-00-276-434610199 INTERCHANGEABLE
Pin,straight,headed
Garwood/feller Inc Garwood Winch Div
6150-00-587-697752414-3 INTERCHANGEABLE
Lead,storage Battery
Stewart & Stevenson Power Products Llc
5960-00-654-3639 INTERCHANGEABLE
Electron Tube
5960-00-682-2701 INTERCHANGEABLE
Electron Tube
5950-00-690-9852 INTERCHANGEABLE
Coil,radio Frequency
2530-00-734-9501 INTERCHANGEABLE
Shaft
5960-00-878-2516 INTERCHANGEABLE
Electron Tube
5365-01-074-82586977 INTERCHANGEABLE
Shim
Cae Usa Inc.
Cross-Reference Index
Part NumberManufacturer
6977 Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems (USA)
TE7641 Transformer Engineers Co a Div of Standard Industries Inc (USA)
Related Parts
3110-00-100-0301INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
383
2815-00-273-0427INTERCHANGEABLE
RING,PISTON
3306568
5315-00-276-4346INTERCHANGEABLE
PIN,STRAIGHT,HEADED
10199
6150-00-587-6977INTERCHANGEABLE
LEAD,STORAGE BATTERY
52414-3
5960-00-654-3639INTERCHANGEABLE
ELECTRON TUBE
5960-00-682-2701INTERCHANGEABLE
ELECTRON TUBE
5950-00-690-9852INTERCHANGEABLE
COIL,RADIO FREQUENCY
2530-00-734-9501INTERCHANGEABLE
SHAFT
5960-00-878-2516INTERCHANGEABLE
ELECTRON TUBE
5365-01-074-8258INTERCHANGEABLE
SHIM
6977
5340-01-264-0323INTERCHANGEABLE
BUMPER
6977
5950-01-269-3284INTERCHANGEABLE
COIL,RADIO FREQUENCY
B445-4

Frequently Asked Questions

What is NSN 5950-00-586-6954?

NSN 5950-00-586-6954 is a Saturable Reactor, manufactured by Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-586-6954?

NSN 5950-00-586-6954 has 2 cross-referenced part numbers: 6977 (Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems), TE7641 (Transformer Engineers Co a Div of Standard Industries Inc).

What NSN replaces 5950-00-586-6954?

There are 12 known substitutes for 5950-00-586-6954: 3110-00-100-0301, 2815-00-273-0427, 5315-00-276-4346 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6977?

Key specifications for 6977: Overall Height: 7.411 INCHES NOMINAL IN; Overall Width: 5.500 INCHES NOMINAL IN; Thread Quantity Per Inch: 20 SINGLE GROUP; Winding Function and Quantity: 2 PRIMARY AND 2 CONTROL SINGLE COMPONENT. 16 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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