PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5666Connector,plug,electrical

Cooper Industries Inc Cooper Distribution Equipment Div · NSN 5935-00-878-5020 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-878-5020 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-878-5020. Primary manufacturer part number: 5666.
Features
  • Connector,plug,electrical — FSC 5935
  • Mating End Quantity: 1
  • Contact Maximum AC Voltage Rating in Volts: 250.0 SINGLE MATING END ALL CONTACT GROUPINGS
  • Included Contact Quantity: 2 SINGLE MATING END SECOND CONTACT GROUPING
  • Contact Maximum Current Rating in Amps: 15.0 SINGLE MATING END ALL CONTACT GROUPINGS
  • Contact Removability: NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
  • Included Contact Quantity: 1 SINGLE MATING END FIRST CONTACT GROUPING
  • Insert Material: PLASTIC SINGLE MATING END
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,plug,electrical, cataloged under National Stock Number 5935-00-878-5020, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Cooper Industries Inc Cooper Distribution Equipment Div. Government technical data includes 12 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5935-00-878-5020
Primary Part Number5666
Item NameConnector,plug,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerCooper Industries Inc Cooper Distribution Equipment Div
StatusCANCELLED
Mating End Quantity1
Contact Maximum AC Voltage Rating in Volts250.0 SINGLE MATING END ALL CONTACT GROUPINGS
Included Contact Quantity2 SINGLE MATING END SECOND CONTACT GROUPING
Contact Maximum Current Rating in Amps15.0 SINGLE MATING END ALL CONTACT GROUPINGS
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity1 SINGLE MATING END FIRST CONTACT GROUPING
Insert MaterialPLASTIC SINGLE MATING END
Connector Cable Strain Relief MethodCABLE CLAMP
Included Contact TypeROUND PIN SINGLE MATING END ALL CONTACT GROUPINGS
Overall Diameter1.531 INCHES NOMINAL IN
Body Length1.281 INCHES NOMINAL IN
Contact Maximum DC Voltage Rating in Volts250.0 SINGLE MATING END ALL CONTACT GROUPINGS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
1650-00-101-77915666 INTERCHANGEABLE
Plate,seal
Eaton Aerospace, Llc Dba Jackson South
5999-00-104-855112993495-2 INTERCHANGEABLE
Contact,electrical
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
6515-00-160-83565666 INTERCHANGEABLE
Syringe,hypodermic
Becton, Dickinson and Co Dba Becton Dickinson & Co
2540-00-521-5386 INTERCHANGEABLE
Handle,door,vehicular
4720-01-421-5143 INTERCHANGEABLE
Hose Assembly,nonmetallic
3120-01-553-30985666 INTERCHANGEABLE
Bearing,sleeve
Gta Marine Dba Gta Marine
Cross-Reference Index
Part NumberManufacturer
5666 Cooper Industries Inc Cooper Distribution Equipment Div (USA)
Related Parts
1650-00-101-7791INTERCHANGEABLE
PLATE,SEAL
5666
5999-00-104-8551INTERCHANGEABLE
CONTACT,ELECTRICAL
12993495-2
6515-00-160-8356INTERCHANGEABLE
SYRINGE,HYPODERMIC
5666
2540-00-521-5386INTERCHANGEABLE
HANDLE,DOOR,VEHICULAR
4720-01-421-5143INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
3120-01-553-3098INTERCHANGEABLE
BEARING,SLEEVE
5666

Frequently Asked Questions

What is NSN 5935-00-878-5020?

NSN 5935-00-878-5020 is a Connector,plug,electrical, manufactured by Cooper Industries Inc Cooper Distribution Equipment Div, classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-00-878-5020?

NSN 5935-00-878-5020 has 1 cross-referenced part number: 5666 (Cooper Industries Inc Cooper Distribution Equipment Div).

What NSN replaces 5935-00-878-5020?

There are 6 known substitutes for 5935-00-878-5020: 1650-00-101-7791, 5999-00-104-8551, 6515-00-160-8356 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5666?

Key specifications for 5666: Mating End Quantity: 1; Contact Maximum AC Voltage Rating in Volts: 250.0 SINGLE MATING END ALL CONTACT GROUPINGS; Included Contact Quantity: 2 SINGLE MATING END SECOND CONTACT GROUPING; Contact Maximum Current Rating in Amps: 15.0 SINGLE MATING END ALL CONTACT GROUPINGS. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-00-878-5020 still in active supply?

NSN 5935-00-878-5020 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.
PartsTable Design LLC · partstable.com