PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3166Contact,electrical

Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect · NSN 5999-00-549-4762 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-549-4762 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-549-4762. Primary manufacturer part number: 3166.
Features
  • Contact,electrical — FSC 5999
  • Precious Material and Weight: 0.005 GOLD GRAINS, TROY
  • Material: COPPER ALLOY CONTACT
  • Material: COPPER ALLOY BODY
  • Precious Material: GOLD
  • Terminal Type and Quantity: 1 THREADED STUD AXIALLY AT ONE END
  • Surface Treatment: GOLD AND SILVER CONTACT
  • Surface Treatment: GOLD AND SILVER BODY
Applications
  • Applications requiring Copper Alloy Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-549-4762, 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 Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-549-4762
Primary Part Number3166
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerWinchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
StatusACTIVE
Precious Material and Weight0.005 GOLD GRAINS, TROY
MaterialCOPPER ALLOY CONTACT
MaterialCOPPER ALLOY BODY
Precious MaterialGOLD
Terminal Type and Quantity1 THREADED STUD AXIALLY AT ONE END
Surface TreatmentGOLD AND SILVER CONTACT
Surface TreatmentGOLD AND SILVER BODY
Precious Material and Weight0.005 GOLD GRAINS, TROY
MaterialCOPPER ALLOY CONTACT
MaterialCOPPER ALLOY BODY
Precious MaterialGOLD
Terminal Type and Quantity1 THREADED STUD AXIALLY AT ONE END
Surface TreatmentGOLD AND SILVER CONTACT
Surface TreatmentGOLD AND SILVER BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight0.1000 lbs
Cube0.0090 cu ft
Verified Substitutes 12
6625-01-231-32113166A SUCCESSOR
Plug-in Unit,electrical-Electron
Matrix Systems Corporation
2910-00-057-142114776 INTERCHANGEABLE
Filter Element,fluid
Westerbeke Corporation
4910-00-078-4016 INTERCHANGEABLE
Balancer,vehicle Wheel
3120-00-143-97933166 INTERCHANGEABLE
Bearing,sleeve
Weil Pump Co Inc
5340-00-222-8567F6NY-187BKM INTERCHANGEABLE
Clamp,loop
Brady United States
5340-00-290-36376009-4 INTERCHANGEABLE
Clamp,loop
Kurz & Root Generator Company, Llc
5120-00-595-9365 INTERCHANGEABLE
Key,socket Head Screw
6730-00-760-4212 INTERCHANGEABLE
Rod,clutch Lever,pr
4810-01-018-91183166 INTERCHANGEABLE
Diaphragm,valve,flat
Pentair Filtration Solutions, Llc
5315-01-189-41333166-016 INTERCHANGEABLE
Pin,straight,headless
Woodward Hrt Inc
Cross-Reference Index
Part NumberManufacturer
CD21812 Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
STDG Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
3166 PRIMARY Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
MREG Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
Related Parts
6625-01-231-3211SUCCESSOR
PLUG-IN UNIT,ELECTRICAL-ELECTRON
3166A
2910-00-057-1421INTERCHANGEABLE
FILTER ELEMENT,FLUID
14776
4910-00-078-4016INTERCHANGEABLE
BALANCER,VEHICLE WHEEL
3120-00-143-9793INTERCHANGEABLE
BEARING,SLEEVE
3166
5340-00-222-8567INTERCHANGEABLE
CLAMP,LOOP
F6NY-187BKM
5340-00-290-3637INTERCHANGEABLE
CLAMP,LOOP
6009-4
5120-00-595-9365INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
6730-00-760-4212INTERCHANGEABLE
ROD,CLUTCH LEVER,PR
4810-01-018-9118INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
3166
5315-01-189-4133INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
3166-016
5985-01-371-7883INTERCHANGEABLE
COUPLER,ANTENNA
3166
2910-01-436-2147INTERCHANGEABLE
FILTER ELEMENT,FLUID
3166

Frequently Asked Questions

What is NSN 5999-00-549-4762?

NSN 5999-00-549-4762 is a Contact,electrical, manufactured by Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-549-4762?

NSN 5999-00-549-4762 has 4 cross-referenced part numbers: CD21812 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect), STDG (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect), 3166 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect), MREG (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect).

What NSN replaces 5999-00-549-4762?

There are 12 known substitutes for 5999-00-549-4762: 6625-01-231-3211, 2910-00-057-1421, 4910-00-078-4016 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3166?

Key specifications for 3166: Precious Material and Weight: 0.005 GOLD GRAINS, TROY; Material: COPPER ALLOY CONTACT; Material: COPPER ALLOY BODY; Precious Material: GOLD. 14 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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