PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66504-9Contact,electrical

Te Connectivity Corporation · NSN 5999-01-108-8600 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-108-8600 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-108-8600. Primary manufacturer part number: 66504-9.
Features
  • Contact,electrical — FSC 5999
  • Crimping Tool Identifying Number: 90302-1
  • Mounting Method: TERMINAL
  • Precious Material: GOLD
  • Precious Material and Location: BODY AND CONTACT SURFACES GOLD
  • Precious Material and Weight: 0.005 GOLD GRAINS, TROY
  • Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290 FED SPEC 2ND TREATMENT RESPONSE BODY AND CONTACT
  • Material Document and Classification: QQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Applications
  • Applications requiring Copper Alloy Body and Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-01-108-8600, 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 Te Connectivity Corporation. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-108-8600
Primary Part Number66504-9
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusCANCELLED
Crimping Tool Identifying Number90302-1
Mounting MethodTERMINAL
Precious MaterialGOLD
Precious Material and LocationBODY AND CONTACT SURFACES GOLD
Precious Material and Weight0.005 GOLD GRAINS, TROY
Surface Treatment Document and ClassificationMIL-G-45204 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290 FED SPEC 2ND TREATMENT RESPONSE BODY AND CONTACT
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
Style DesignatorSOCKET CRIMP CONTACT
MaterialCOPPER ALLOY BODY AND CONTACT
Surface TreatmentGOLD AND NICKEL BODY AND CONTACT
Crimping Tool Identifying Number90302-1
Mounting MethodTERMINAL
Precious MaterialGOLD
Precious Material and LocationBODY AND CONTACT SURFACES GOLD
Precious Material and Weight0.005 GOLD GRAINS, TROY
Surface Treatment Document and ClassificationMIL-G-45204 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290 FED SPEC 2ND TREATMENT RESPONSE BODY AND CONTACT
Material Document and ClassificationQQ-B-750 FED SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
Style DesignatorSOCKET CRIMP CONTACT
MaterialCOPPER ALLOY BODY AND CONTACT
Surface TreatmentGOLD AND NICKEL BODY AND CONTACT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeDZ
Weight0.0010 lbs
Cube0.0000 cu ft
Verified Substitutes 7
No Item Name Available
5999-00-052-2275D7 INTERCHANGEABLE
Delay Line
Esc Control Electronics Llc Dba Control Electronics Division of Fil-Coil
3110-00-100-8516E7 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
2410-00-191-0532 INTERCHANGEABLE
Tractor,full Tracked,low Speed
2410-00-191-0536 INTERCHANGEABLE
Tractor,full Tracked,low Speed
2410-00-223-1207D7 INTERCHANGEABLE
Tractor,full Tracked,low Speed
Caterpillar Inc Div Caterpillar Defense
2410-00-233-5749 INTERCHANGEABLE
Tractor,full Tracked,low Speed
Cross-Reference Index
Part NumberManufacturer
66504-9 Tyco Electronics Amp Gmbh (DEU)
712177-2 Raytheon Company Div Rmd Strategic (USA)
154207079 Eaton Corporation (USA)
66504-9 Tyco Electronics Uk Ltd (GBR)
66504-9R Te Connectivity Corporation (USA)
66504-9 Tyco Electronics Uk Ltd (GBR)
000-8006-942 The Boeing Company Div Legacy Boeing Hb1 (USA)
57988-90617-1 Textron Systems Corporation Dba Textron Systems Corp (USA)
0-0066504-9 Tyco Electronics Amp Gmbh (DEU)
66504-9 PRIMARY Te Connectivity Corporation (USA)
D7 Bae Systems Technology Solutions & Services Inc. (USA)
60430095D Thales Uk Limited Dba Thales Uk Ltd Training and Simulation (GBR)
920-0005AA Micom Systems Inc Micom-Interlan Div (USA)
66504-9 Digi-Key Corp (USA)
372-0514-090 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
66504-3 Te Connectivity Corporation (USA)
J45-0003-100 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
924764-0007 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5999-01-088-4121SUCCESSOR
NO ITEM NAME AVAILABLE
5999-00-052-2275INTERCHANGEABLE
DELAY LINE
D7
3110-00-100-8516INTERCHANGEABLE
BEARING,BALL,THRUST
E7
2410-00-191-0532INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
2410-00-191-0536INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
2410-00-223-1207INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
D7
2410-00-233-5749INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED

Frequently Asked Questions

What is NSN 5999-01-108-8600?

NSN 5999-01-108-8600 is a Contact,electrical, manufactured by Te Connectivity Corporation, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-108-8600?

NSN 5999-01-108-8600 has 18 cross-referenced part numbers: 66504-9 (Tyco Electronics Amp Gmbh), 712177-2 (Raytheon Company Div Rmd Strategic), 154207079 (Eaton Corporation), 66504-9 (Tyco Electronics Uk Ltd), 66504-9R (Te Connectivity Corporation) and 13 more.

What NSN replaces 5999-01-108-8600?

There are 7 known substitutes for 5999-01-108-8600: 5999-01-088-4121, 5999-00-052-2275, 3110-00-100-8516 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66504-9?

Key specifications for 66504-9: Crimping Tool Identifying Number: 90302-1; Mounting Method: TERMINAL; Precious Material: GOLD; Precious Material and Location: BODY AND CONTACT SURFACES GOLD. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-108-8600 still in active supply?

NSN 5999-01-108-8600 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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