PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

740-963Contact,electrical

Eaton Corp Opns & Technical Center · NSN 5999-00-422-5431 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-422-5431 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-422-5431. Primary manufacturer part number: 740-963.
Features
  • Contact,electrical — FSC 5999
  • Mounting Facility Quantity: 2
  • Unthreaded Mounting Hole Diameter: 0.156 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
  • Material: COPPER ALLOY CONTACT
  • Mounting Method: UNTHREADED HOLE(S)
  • Distance Between Mounting Facility Centers: 0.500 INCHES NOMINAL IN
  • Mounting Facility Quantity: 2
  • Unthreaded Mounting Hole Diameter: 0.156 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Applications
  • Applications requiring Copper Alloy Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-422-5431, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-422-5431
Primary Part Number740-963
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusACTIVE
Mounting Facility Quantity2
Unthreaded Mounting Hole Diameter0.156 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
MaterialCOPPER ALLOY CONTACT
Mounting MethodUNTHREADED HOLE(S)
Distance Between Mounting Facility Centers0.500 INCHES NOMINAL IN
Mounting Facility Quantity2
Unthreaded Mounting Hole Diameter0.156 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
MaterialCOPPER ALLOY CONTACT
Mounting MethodUNTHREADED HOLE(S)
Distance Between Mounting Facility Centers0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Verified Substitutes 12
Marker,amplitude
6640-00-003-96693370 INTERCHANGEABLE
Microtome
Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion
3110-00-100-981605062 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5305-00-370-1708125132 INTERCHANGEABLE
Screw,machine
Telemechanics Inc
5935-00-455-67493370 INTERCHANGEABLE
Insert,electrical Connector
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5310-00-483-227621621 INTERCHANGEABLE
Washer
Industrial Technologies and Services Llc
3030-00-528-4545 INTERCHANGEABLE
Belt,v
4730-00-772-9552144670 INTERCHANGEABLE
Strainer Element,sediment
Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in
4130-00-887-1770 INTERCHANGEABLE
Seal Assembly,compressor
6625-01-244-30323370 INTERCHANGEABLE
Controller-Indicator,strain Gage
Daytronic Corporation
Cross-Reference Index
Part NumberManufacturer
A40-603 Eaton Corp Opns & Technical Center (USA)
3370 Eaton Corp Opns & Technical Center (USA)
255763PC3 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
740-963 PRIMARY Eaton Corp Opns & Technical Center (USA)
Related Parts
6625-00-229-8796SUCCESSOR
MARKER,AMPLITUDE
6640-00-003-9669INTERCHANGEABLE
MICROTOME
3370
3110-00-100-9816INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
05062
5305-00-370-1708INTERCHANGEABLE
SCREW,MACHINE
125132
5935-00-455-6749INTERCHANGEABLE
INSERT,ELECTRICAL CONNECTOR
3370
5310-00-483-2276INTERCHANGEABLE
WASHER
21621
3030-00-528-4545INTERCHANGEABLE
BELT,V
4730-00-772-9552INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
144670
4130-00-887-1770INTERCHANGEABLE
SEAL ASSEMBLY,COMPRESSOR
6625-01-244-3032INTERCHANGEABLE
CONTROLLER-INDICATOR,STRAIN GAGE
3370
6515-01-423-6567INTERCHANGEABLE
CANNULA,NEEDLELESS ACCESS SYSTEM
303370
4720-01-446-1861INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 5999-00-422-5431?

NSN 5999-00-422-5431 is a Contact,electrical, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-422-5431?

NSN 5999-00-422-5431 has 4 cross-referenced part numbers: A40-603 (Eaton Corp Opns & Technical Center), 3370 (Eaton Corp Opns & Technical Center), 255763PC3 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 740-963 (Eaton Corp Opns & Technical Center).

What NSN replaces 5999-00-422-5431?

There are 12 known substitutes for 5999-00-422-5431: 6625-00-229-8796, 6640-00-003-9669, 3110-00-100-9816 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 740-963?

Key specifications for 740-963: Mounting Facility Quantity: 2; Unthreaded Mounting Hole Diameter: 0.156 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Material: COPPER ALLOY CONTACT; Mounting Method: UNTHREADED HOLE(S). 10 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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