PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1242-9Contact,electrical

Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect · NSN 5999-00-824-9654 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-824-9654 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-824-9654. Primary manufacturer part number: 1242-9.
Features
  • Contact,electrical — FSC 5999
  • Material: COPPER CONTACT
  • Material: COPPER BODY
  • Precious Material and Location: BODY AND CONTACT GOLD AND BODY AND CONTACT SURFACES SILVER
  • Precious Material and Weight: 0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY
  • Style Designator: PIN CONTACT
  • Precious Material: GOLD AND SILVER
  • Terminal Type and Quantity: 1 SOLDER WELL AXIALLY AT ONE END
Applications
  • Applications requiring Copper Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-824-9654, 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 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-824-9654
Primary Part Number1242-9
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerWinchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
StatusACTIVE
MaterialCOPPER CONTACT
MaterialCOPPER BODY
Precious Material and LocationBODY AND CONTACT GOLD AND BODY AND CONTACT SURFACES SILVER
Precious Material and Weight0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY
Style DesignatorPIN CONTACT
Precious MaterialGOLD AND SILVER
Terminal Type and Quantity1 SOLDER WELL AXIALLY AT ONE END
Pin Length0.310 INCHES NOMINAL IN
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Surface TreatmentGOLD AND SILVER BODY AND CONTACT
Test Data Document97942-577R674H01 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Pin Diameter0.040 INCHES NOMINAL IN
Surface Treatment Document and ClassificationMIL-G-45204 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-S-365 FED SPEC 2ND TREATMENT RESPONSE BODY AND CONTACT
Cable Entrance Diameter0.048 INCHES NOMINAL IN
Mounting MethodFORCE FIT
Overall Diameter0.105 INCHES NOMINAL IN
MaterialCOPPER CONTACT
MaterialCOPPER BODY
Precious Material and LocationBODY AND CONTACT GOLD AND BODY AND CONTACT SURFACES SILVER
Precious Material and Weight0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY
Style DesignatorPIN CONTACT
Precious MaterialGOLD AND SILVER
Terminal Type and Quantity1 SOLDER WELL AXIALLY AT ONE END
Pin Length0.310 INCHES NOMINAL IN
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Surface TreatmentGOLD AND SILVER BODY AND CONTACT
Test Data Document97942-577R674H01 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Pin Diameter0.040 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight0.0010 lbs
Cube0.0000 cu ft
Verified Substitutes 6
5999-00-462-68761803085-9 SUCCESSOR
Contact,electrical
Northrop Grumman Systems Corporation
2910-00-019-78220-14744 INTERCHANGEABLE
Carburetor,float
Zenith Fuel Systems Llc
4730-00-236-631712429 INTERCHANGEABLE
Bushing,pipe
Aeroil Products Co Inc
2990-01-045-637612763-N INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
5310-01-147-816912429 INTERCHANGEABLE
Nut
Westerbeke Corporation
5360-01-422-325712429 INTERCHANGEABLE
Spring,helical,compression
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
1242-9 U S Components Inc (USA)
577R674H01 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
1242-9 PRIMARY Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
Related Parts
5999-00-462-6876SUCCESSOR
CONTACT,ELECTRICAL
1803085-9
2910-00-019-7822INTERCHANGEABLE
CARBURETOR,FLOAT
0-14744
4730-00-236-6317INTERCHANGEABLE
BUSHING,PIPE
12429
2990-01-045-6376INTERCHANGEABLE
MUFFLER,EXHAUST
12763-N
5310-01-147-8169INTERCHANGEABLE
NUT
12429
5360-01-422-3257INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12429

Frequently Asked Questions

What is NSN 5999-00-824-9654?

NSN 5999-00-824-9654 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 5999-00-824-9654?

NSN 5999-00-824-9654 has 3 cross-referenced part numbers: 1242-9 (U S Components Inc), 577R674H01 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 1242-9 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect).

What NSN replaces 5999-00-824-9654?

There are 6 known substitutes for 5999-00-824-9654: 5999-00-462-6876, 2910-00-019-7822, 4730-00-236-6317 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1242-9?

Key specifications for 1242-9: Material: COPPER CONTACT; Material: COPPER BODY; Precious Material and Location: BODY AND CONTACT GOLD AND BODY AND CONTACT SURFACES SILVER; Precious Material and Weight: 0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY. 30 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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