PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40-290Contact,electrical

Eaton Corp Opns & Technical Center · NSN 5999-00-642-2820 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-642-2820 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-642-2820. Primary manufacturer part number: 40-290.
Features
  • Contact,electrical — FSC 5999
  • Unthreaded Mounting Hole Diameter: 0.187 INCHES NOMINAL IN
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG BASE
  • Material: SILVER BODY
  • Mounting Facility Quantity: 1
  • Mounting Method: UNTHREADED HOLE(S)
  • Current Rating in Amps: 50.0
  • Voltage Rating in Volts: 440.0 AC
Applications
  • Applications requiring Silver Body construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-642-2820, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Eaton Corp Opns & Technical Center. Government technical data includes 14 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5999-00-642-2820
Primary Part Number40-290
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusCANCELLED
Unthreaded Mounting Hole Diameter0.187 INCHES NOMINAL IN
Terminal Type and Quantity1 TAB, SOLDER LUG BASE
MaterialSILVER BODY
Mounting Facility Quantity1
Mounting MethodUNTHREADED HOLE(S)
Current Rating in Amps50.0
Voltage Rating in Volts440.0 AC
Unthreaded Mounting Hole Diameter0.187 INCHES NOMINAL IN
Terminal Type and Quantity1 TAB, SOLDER LUG BASE
MaterialSILVER BODY
Mounting Facility Quantity1
Mounting MethodUNTHREADED HOLE(S)
Current Rating in Amps50.0
Voltage Rating in Volts440.0 AC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5360-00-095-720140290 INTERCHANGEABLE
Spring
Bunting Bearings Corp Delta Plant
3455-00-224-365545545 INTERCHANGEABLE
Cutter,milling,metal Slitting
Kennametal Inc. Div Kennametal Industrial Products Group
5961-00-372-2910 INTERCHANGEABLE
Transistor
5961-00-449-7037 INTERCHANGEABLE
Transistor
9540-00-555-0819 INTERCHANGEABLE
Beam,structural
5915-01-031-1510GF55587 INTERCHANGEABLE
Filter,radio Frequency Interfere
Genisco Technology Corporation
1650-01-650-737440290 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5310-01-663-067140290 INTERCHANGEABLE
Washer,spring Tension
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
PX1691 Vulcan-Hart Corp (USA)
40-290 PRIMARY Eaton Corp Opns & Technical Center (USA)
Related Parts
5360-00-095-7201INTERCHANGEABLE
SPRING
40290
3455-00-224-3655INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
45545
5961-00-372-2910INTERCHANGEABLE
TRANSISTOR
5961-00-449-7037INTERCHANGEABLE
TRANSISTOR
9540-00-555-0819INTERCHANGEABLE
BEAM,STRUCTURAL
5915-01-031-1510INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
GF55587
1650-01-650-7374INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
40290
5310-01-663-0671INTERCHANGEABLE
WASHER,SPRING TENSION
40290

Frequently Asked Questions

What is NSN 5999-00-642-2820?

NSN 5999-00-642-2820 is a Contact,electrical, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-642-2820?

NSN 5999-00-642-2820 has 2 cross-referenced part numbers: PX1691 (Vulcan-Hart Corp), 40-290 (Eaton Corp Opns & Technical Center).

What NSN replaces 5999-00-642-2820?

There are 8 known substitutes for 5999-00-642-2820: 5360-00-095-7201, 3455-00-224-3655, 5961-00-372-2910 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40-290?

Key specifications for 40-290: Unthreaded Mounting Hole Diameter: 0.187 INCHES NOMINAL IN; Terminal Type and Quantity: 1 TAB, SOLDER LUG BASE; Material: SILVER BODY; Mounting Facility Quantity: 1. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-642-2820 still in active supply?

NSN 5999-00-642-2820 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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