PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66261-1Contact,electrical

Te Connectivity Corporation · NSN 5999-00-998-8495 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-998-8495 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-998-8495. Primary manufacturer part number: 66261-1.
Features
  • Contact,electrical — FSC 5999
  • Mounting Method: FORCE FIT
  • Terminal Type and Quantity: 1 CRIMP AXIALLY AT ONE END
  • Material: COPPER ALLOY BODY AND CONTACT
  • Surface Treatment: TIN BODY AND CONTACT
  • Style Designator: CYLINDRICAL SHAPE
  • Mounting Method: FORCE FIT
  • Terminal Type and Quantity: 1 CRIMP AXIALLY AT ONE END
Applications
  • Applications requiring Copper Alloy Body and Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-998-8495, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-998-8495
Primary Part Number66261-1
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerTe Connectivity Corporation
StatusACTIVE
Mounting MethodFORCE FIT
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
MaterialCOPPER ALLOY BODY AND CONTACT
Surface TreatmentTIN BODY AND CONTACT
Style DesignatorCYLINDRICAL SHAPE
Mounting MethodFORCE FIT
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
MaterialCOPPER ALLOY BODY AND CONTACT
Surface TreatmentTIN BODY AND CONTACT
Style DesignatorCYLINDRICAL SHAPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.0100 lbs
Cube0.0000 cu ft
Verified Substitutes 1
5120-00-773-8026 INTERCHANGEABLE
Key,socket Head Screw
Cross-Reference Index
Part NumberManufacturer
25433-01110 Leonardo Uk Ltd (GBR)
25433-01110 Leonardo Mw Ltd (GBR)
2050296-0701 Raytheon Company Dba Raytheon Co (USA)
66261-1 PRIMARY Te Connectivity Corporation (USA)
Related Parts
5120-00-773-8026INTERCHANGEABLE
KEY,SOCKET HEAD SCREW

Frequently Asked Questions

What is NSN 5999-00-998-8495?

NSN 5999-00-998-8495 is a Contact,electrical, manufactured by Te Connectivity Corporation, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-998-8495?

NSN 5999-00-998-8495 has 4 cross-referenced part numbers: 25433-01110 (Leonardo Uk Ltd), 25433-01110 (Leonardo Mw Ltd), 2050296-0701 (Raytheon Company Dba Raytheon Co), 66261-1 (Te Connectivity Corporation).

What NSN replaces 5999-00-998-8495?

There is 1 known substitute for 5999-00-998-8495: 5120-00-773-8026. Verify interchangeability with system specifications before substitution.

What are the specifications of 66261-1?

Key specifications for 66261-1: Special Features: N/H/A RADAR SET, 5840-00-458-9195; Mounting Method: FORCE FIT; Terminal Type and Quantity: 1 CRIMP AXIALLY AT ONE END; Material: COPPER ALLOY BODY AND CONTACT. 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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