PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1677Reactor

Comspace Corp Munston Electronics Div · NSN 5950-00-681-7261 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-681-7261 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-681-7261. Primary manufacturer part number: 1677.
Features
  • Reactor — FSC 5950
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 3.250 INCHES NOMINAL IN
  • DC Resistance Rating in Ohms: 37.800 SINGLE COMPONENT SINGLE WINDING
  • Thread Series Designator: UNF SINGLE GROUP
  • Winding Operating Current: 500.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Inclosure Type: HERMETICALLY SEALED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-681-7261, 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 Comspace Corp Munston Electronics Div. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5950-00-681-7261
Primary Part Number1677
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerComspace Corp Munston Electronics Div
StatusACTIVE
Center to Center Distance Between Mounting Facilities Parallel to Width3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Reliability IndicatorNOT ESTABLISHED
Body Width3.250 INCHES NOMINAL IN
DC Resistance Rating in Ohms37.800 SINGLE COMPONENT SINGLE WINDING
Thread Series DesignatorUNF SINGLE GROUP
Winding Operating Current500.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Inclosure TypeHERMETICALLY SEALED
Thread Quantity Per Inch32 SINGLE GROUP
Terminal Type and Quantity2 WIRE LEAD
Winding Quantity1 SINGLE COMPONENT
Body Height4.250 INCHES NOMINAL IN
Inductance TypeFIXED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Inductance Rating3.50 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
Mounting Facility Quantity4 SINGLE GROUP
Body Length3.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-056-8427 INTERCHANGEABLE
Gasket
3750-00-299-04411677 INTERCHANGEABLE
Bolt,swivel
Terrain King Corporation
4820-00-420-6845708290-00 INTERCHANGEABLE
Seat,valve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
6350-00-422-17849020352 INTERCHANGEABLE
Horn,signal
Time Manufacturing Company Dba Time Manufacturing Company
5962-00-465-49137901001-01 INTERCHANGEABLE
Microcircuit,digital
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
5950-00-466-161743001127-000 INTERCHANGEABLE
Transformer,audio Frequency
Dne Technologies, Inc
5330-00-599-4517A676 INTERCHANGEABLE
Gasket
Champion Aerospace Llc
5306-00-857-24911677 INTERCHANGEABLE
Bolt,shoulder
Parker-Hannifin Corporation Dba Control Systems Division
5805-00-975-9789 INTERCHANGEABLE
Arm
6240-00-981-46811677 INTERCHANGEABLE
Lamp,incandescent
Richmond Engineering Co Inc
Cross-Reference Index
Part NumberManufacturer
1677 PRIMARY Comspace Corp Munston Electronics Div (USA)
Related Parts
5330-00-056-8427INTERCHANGEABLE
GASKET
3750-00-299-0441INTERCHANGEABLE
BOLT,SWIVEL
1677
4820-00-420-6845INTERCHANGEABLE
SEAT,VALVE
708290-00
6350-00-422-1784INTERCHANGEABLE
HORN,SIGNAL
9020352
5962-00-465-4913INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
7901001-01
5950-00-466-1617INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
43001127-000
5330-00-599-4517INTERCHANGEABLE
GASKET
A676
5306-00-857-2491INTERCHANGEABLE
BOLT,SHOULDER
1677
5805-00-975-9789INTERCHANGEABLE
ARM
6240-00-981-4681INTERCHANGEABLE
LAMP,INCANDESCENT
1677
4330-01-037-9285INTERCHANGEABLE
FILTER ELEMENT,FLUID
51677
5975-01-161-1409INTERCHANGEABLE
PROTECTOR,ELECTRICAL CABLE
1677

Frequently Asked Questions

What is NSN 5950-00-681-7261?

NSN 5950-00-681-7261 is a Reactor, manufactured by Comspace Corp Munston Electronics Div, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-681-7261?

NSN 5950-00-681-7261 has 1 cross-referenced part number: 1677 (Comspace Corp Munston Electronics Div).

What NSN replaces 5950-00-681-7261?

There are 12 known substitutes for 5950-00-681-7261: 5330-00-056-8427, 3750-00-299-0441, 4820-00-420-6845 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1677?

Key specifications for 1677: Center to Center Distance Between Mounting Facilities Parallel to Width: 3.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Reliability Indicator: NOT ESTABLISHED; Body Width: 3.250 INCHES NOMINAL IN; DC Resistance Rating in Ohms: 37.800 SINGLE COMPONENT SINGLE WINDING. 19 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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