PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PC78520-1Contact,electrical

Rockwell Collins, Inc. Dba Rc Displays Systems · NSN 5999-00-837-9170 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-837-9170 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-837-9170. Primary manufacturer part number: PC78520-1.
Features
  • Contact,electrical — FSC 5999
  • Terminal Type and Quantity: 1 CRIMP END OPPOSITE CONTACT
  • Material: COPPER ALLOY BODY AND CONTACT
  • Precious Material: GOLD
  • Precious Material and Location: CONTACT SURFACE GOLD
  • Surface Treatment: GOLD AND NICKEL CONTACT
  • Surface Treatment: COPPER ALLOY BODY
  • Style Designator: PRINTED CIRCUIT CONTACT
Applications
  • Applications requiring Copper Alloy Body and Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-837-9170, 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 Rockwell Collins, Inc. Dba Rc Displays Systems. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-837-9170
Primary Part NumberPC78520-1
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Rc Displays Systems
StatusCANCELLED
Terminal Type and Quantity1 CRIMP END OPPOSITE CONTACT
MaterialCOPPER ALLOY BODY AND CONTACT
Precious MaterialGOLD
Precious Material and LocationCONTACT SURFACE GOLD
Surface TreatmentGOLD AND NICKEL CONTACT
Surface TreatmentCOPPER ALLOY BODY
Style DesignatorPRINTED CIRCUIT CONTACT
Precious Material and Weight0.005 GOLD GRAINS, TROY
Mounting MethodTERMINAL
Pin Length0.105 INCHES NOMINAL IN
Terminal Type and Quantity1 CRIMP END OPPOSITE CONTACT
MaterialCOPPER ALLOY BODY AND CONTACT
Precious MaterialGOLD
Precious Material and LocationCONTACT SURFACE GOLD
Surface TreatmentGOLD AND NICKEL CONTACT
Surface TreatmentCOPPER ALLOY BODY
Style DesignatorPRINTED CIRCUIT CONTACT
Precious Material and Weight0.005 GOLD GRAINS, TROY
Mounting MethodTERMINAL
Pin Length0.105 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeZN
Weight0.0010 lbs
Cube0.0000 cu ft
Verified Substitutes 2
5360-00-495-1279214842 INTERCHANGEABLE
Spring,helical,compression
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4320-01-182-9999428393 INTERCHANGEABLE
Plate,start Valve
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
PC78520-1 Te Connectivity Corporation (USA)
42839-3 Te Connectivity Corporation (USA)
583990-3 Te Connectivity Corporation (USA)
42702-3 Te Connectivity Corporation (USA)
42702-3LP Te Connectivity Corporation (USA)
PC78520-1 PRIMARY Rockwell Collins, Inc. Dba Rc Displays Systems (USA)
Related Parts
5360-00-495-1279INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
214842
4320-01-182-9999INTERCHANGEABLE
PLATE,START VALVE
428393

Frequently Asked Questions

What is NSN 5999-00-837-9170?

NSN 5999-00-837-9170 is a Contact,electrical, manufactured by Rockwell Collins, Inc. Dba Rc Displays Systems, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-837-9170?

NSN 5999-00-837-9170 has 6 cross-referenced part numbers: PC78520-1 (Te Connectivity Corporation), 42839-3 (Te Connectivity Corporation), 583990-3 (Te Connectivity Corporation), 42702-3 (Te Connectivity Corporation), 42702-3LP (Te Connectivity Corporation) and 1 more.

What NSN replaces 5999-00-837-9170?

There are 2 known substitutes for 5999-00-837-9170: 5360-00-495-1279, 4320-01-182-9999. Verify interchangeability with system specifications before substitution.

What are the specifications of PC78520-1?

Key specifications for PC78520-1: Terminal Type and Quantity: 1 CRIMP END OPPOSITE CONTACT; Material: COPPER ALLOY BODY AND CONTACT; Precious Material: GOLD; Precious Material and Location: CONTACT SURFACE GOLD. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-837-9170 still in active supply?

NSN 5999-00-837-9170 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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