PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66506-9Contact,electrical

Te Connectivity Corporation · NSN 5999-01-083-0891 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-083-0891 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-083-0891. Primary manufacturer part number: 66506-9.
Features
  • Contact,electrical — FSC 5999
  • Precious Material and Location: BODY AND CONTACT SURFACE GOLD
  • Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE CONTACT
  • Surface Treatment: GOLD CONTACT
  • Precious Material: GOLD
  • Material: COPPER ALLOY 260 BODY AND CONTACT
  • Surface Treatment: GOLD AND NICKEL BODY
  • Pin Accommodation Length: 0.390 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy 260 Body and Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-01-083-0891, 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 14 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-083-0891
Primary Part Number66506-9
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusCANCELLED
Precious Material and LocationBODY AND CONTACT SURFACE GOLD
Surface Treatment Document and ClassificationMIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE CONTACT
Surface TreatmentGOLD CONTACT
Precious MaterialGOLD
MaterialCOPPER ALLOY 260 BODY AND CONTACT
Surface TreatmentGOLD AND NICKEL BODY
Pin Accommodation Length0.390 INCHES NOMINAL IN
Mounting MethodTERMINAL
Overall Diameter0.060 INCHES MAXIMUM IN
Style DesignatorSOCKET CRIMP CONTACT
Material Document and ClassificationMIL-C-50 MIL SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Precious Material and LocationBODY AND CONTACT SURFACE GOLD
Surface Treatment Document and ClassificationMIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE CONTACT
Surface TreatmentGOLD CONTACT
Precious MaterialGOLD
MaterialCOPPER ALLOY 260 BODY AND CONTACT
Surface TreatmentGOLD AND NICKEL BODY
Pin Accommodation Length0.390 INCHES NOMINAL IN
Mounting MethodTERMINAL
Overall Diameter0.060 INCHES MAXIMUM IN
Style DesignatorSOCKET CRIMP CONTACT
Material Document and ClassificationMIL-C-50 MIL SPEC SINGLE MATERIAL RESPONSE BODY AND CONTACT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeDZ
Weight0.0200 lbs
Cube0.0001 cu ft
Verified Substitutes 12
6110-00-014-238410040117 INTERCHANGEABLE
Electronic Subassem
Us Army Aviation and Missile Command
2410-00-233-5750 INTERCHANGEABLE
Tractor,full Tracked,low Speed
2410-00-233-5751 INTERCHANGEABLE
Tractor,full Tracked,low Speed
2410-00-233-5752 INTERCHANGEABLE
Tractor,full Tracked,low Speed
4320-00-336-5393199655PC6 INTERCHANGEABLE
Sleeve,shaft,pump
Naval Sea Systems Command
5915-00-458-7282C517009274 INTERCHANGEABLE
Filter,radio Frequency Interfere
Kearfott Corporation Div Guidance and Navigation Division
5420-00-491-6339 INTERCHANGEABLE
Superstructure,interior Bay
2410-00-542-4881 INTERCHANGEABLE
Tractor,full Tracked,low Speed
2410-00-542-4882 INTERCHANGEABLE
Tractor,full Tracked,low Speed
3110-00-718-6941 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
66506-9 Tyco Electronics Uk Ltd (GBR)
0-0066506-9 Tyco Electronics Amp Gmbh (DEU)
920-0004AA Micom Systems Inc Micom-Interlan Div (USA)
66506-9 PRIMARY Te Connectivity Corporation (USA)
D8 Bae Systems Technology Solutions & Services Inc. (USA)
02272 Motorola/codex Corp Sub of Motorola Inc (USA)
J45-0015-664 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
5999PL1258748 Jednolity Indeks Materialowy - Uniform Material Index (POL)
60430084D Thales Uk Limited Dba Thales Uk Ltd Training and Simulation (GBR)
66506-9 Digi-Key Corp (USA)
66503-3 Te Connectivity Corporation (USA)
P23003676 Western Peripherals Inc Div of Wespercorp (USA)
66509-9 Te Connectivity Corporation (USA)
154207078 PRIMARY Eaton Corporation (USA)
Related Parts
6110-00-014-2384INTERCHANGEABLE
ELECTRONIC SUBASSEM
10040117
2410-00-233-5750INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
2410-00-233-5751INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
2410-00-233-5752INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
4320-00-336-5393INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
199655PC6
5915-00-458-7282INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
C517009274
5420-00-491-6339INTERCHANGEABLE
SUPERSTRUCTURE,INTERIOR BAY
2410-00-542-4881INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
2410-00-542-4882INTERCHANGEABLE
TRACTOR,FULL TRACKED,LOW SPEED
3110-00-718-6941INTERCHANGEABLE
BEARING,BALL,ANNULAR
6635-00-850-7356INTERCHANGEABLE
TESTER,COATING THIC
5930-00-958-0432INTERCHANGEABLE
SWITCH,SENSITIVE
61A19C559

Frequently Asked Questions

What is NSN 5999-01-083-0891?

NSN 5999-01-083-0891 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 5999-01-083-0891?

NSN 5999-01-083-0891 has 14 cross-referenced part numbers: 66506-9 (Tyco Electronics Uk Ltd), 0-0066506-9 (Tyco Electronics Amp Gmbh), 920-0004AA (Micom Systems Inc Micom-Interlan Div), 66506-9 (Te Connectivity Corporation), D8 (Bae Systems Technology Solutions & Services Inc.) and 9 more.

What NSN replaces 5999-01-083-0891?

There are 12 known substitutes for 5999-01-083-0891: 6110-00-014-2384, 2410-00-233-5750, 2410-00-233-5751 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66506-9?

Key specifications for 66506-9: Precious Material and Location: BODY AND CONTACT SURFACE GOLD; Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE CONTACT; Surface Treatment: GOLD CONTACT; Precious Material: GOLD. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-083-0891 still in active supply?

NSN 5999-01-083-0891 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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