PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1658391-1Chopper,electronic

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5945-00-620-0642 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-620-0642 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-620-0642. Primary manufacturer part number: 1658391-1.
Features
  • Chopper,electronic — FSC 5945
  • Mounting Provision: HOLES
  • Terminal Type: TUBE PLUG
  • Overall Diameter: 0.845 INCHES NOMINAL IN
  • Drive Voltage Relationship to Input Voltage: NOT RATED
  • Dwell Time Rating in Deg: 15.0 MAXIMUM
  • Output/input Voltage Relationship: NOT RATED
  • Mounting Facility Quantity: 2
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Chopper,electronic, cataloged under National Stock Number 5945-00-620-0642, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-620-0642
Primary Part Number1658391-1
Item NameChopper,electronic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Mounting ProvisionHOLES
Terminal TypeTUBE PLUG
Overall Diameter0.845 INCHES NOMINAL IN
Drive Voltage Relationship to Input VoltageNOT RATED
Dwell Time Rating in Deg15.0 MAXIMUM
Output/input Voltage RelationshipNOT RATED
Mounting Facility Quantity2
Mounting Facility Size0.141 IN. DIA IN
Plug in Mounting FeatureNOT PROVIDED
Input Voltage Rating6.3 AC VOLTS NOMINAL
Mounting MethodFLANGE AND HOLE
Unit TypeELECTROMECHANICAL
Contact ArrangementSINGLE POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Mounting ConfigurationTWO 0.141 IN. DIA HOLES SPACED 0.875 IN. APART ON FLANGE IN
Contact Operation SequenceANY ACCEPTABLE
Contact Current Rating2.0 MILLIAMPERES NOMINAL
Hermetically Sealed FeatureNOT PROVIDED
Base Connection Wiring Style7 PIN STANDARD TUBE
Contact Voltage Rating3.0 AC VOLTS NOMINAL
Terminal Quantity7
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
1650-01-154-7946A8889 INTERCHANGEABLE
Valve,vent
Eaton Aerospace Llc Div Fluid and Electrical Distribution Division
5905-01-330-2299 INTERCHANGEABLE
Resistor,chip,fixed,film
Cross-Reference Index
Part NumberManufacturer
C1121562-1 Raytheon Company Dba Raytheon Co (USA)
95908-8 Dare Electronics, Inc. (USA)
10127981 Us Army Aviation and Missile Command (USA)
1658391-1 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
95908-8 Bristol Babcock Inc Instruments-Systems Div Sub of Babcock Intl Inc (USA)
A8889 Autodyne Manufacturing Co Inc (USA)
Related Parts
1650-01-154-7946INTERCHANGEABLE
VALVE,VENT
A8889
5905-01-330-2299INTERCHANGEABLE
RESISTOR,CHIP,FIXED,FILM

Frequently Asked Questions

What is NSN 5945-00-620-0642?

NSN 5945-00-620-0642 is a Chopper,electronic, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-620-0642?

NSN 5945-00-620-0642 has 6 cross-referenced part numbers: C1121562-1 (Raytheon Company Dba Raytheon Co), 95908-8 (Dare Electronics, Inc.), 10127981 (Us Army Aviation and Missile Command), 1658391-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 95908-8 (Bristol Babcock Inc Instruments-Systems Div Sub of Babcock Intl Inc) and 1 more.

What NSN replaces 5945-00-620-0642?

There are 2 known substitutes for 5945-00-620-0642: 1650-01-154-7946, 5905-01-330-2299. Verify interchangeability with system specifications before substitution.

What are the specifications of 1658391-1?

Key specifications for 1658391-1: Overall Length: 2.077 INCHES NOMINAL IN; Mounting Provision: HOLES; Terminal Type: TUBE PLUG; Overall Diameter: 0.845 INCHES NOMINAL IN. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-620-0642 still in active supply?

NSN 5945-00-620-0642 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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