PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-33051-23Contact,electrical

Amphenol Corp Div Amphenol Aerospace Operations · NSN 5999-00-459-4494 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-459-4494 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-459-4494. Primary manufacturer part number: 21-33051-23.
Features
  • Contact,electrical — FSC 5999
  • Cable Entrance Diameter: 0.022 INCHES NOMINAL IN
  • Overall Diameter: 0.156 INCHES NOMINAL IN
  • Style Designator: PIN CENTER CONTACT
  • Surface Treatment: GOLD CONTACT
  • Surface Treatment: GOLD BODY
  • Pin Accommodation Length: 0.284 INCHES NOMINAL IN
  • Material: COPPER ALLOY BODY
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-459-4494, 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 Amphenol Corp Div Amphenol Aerospace Operations. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5999-00-459-4494
Primary Part Number21-33051-23
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerAmphenol Corp Div Amphenol Aerospace Operations
StatusCANCELLED
Cable Entrance Diameter0.022 INCHES NOMINAL IN
Overall Diameter0.156 INCHES NOMINAL IN
Style DesignatorPIN CENTER CONTACT
Surface TreatmentGOLD CONTACT
Surface TreatmentGOLD BODY
Pin Accommodation Length0.284 INCHES NOMINAL IN
MaterialCOPPER ALLOY BODY
Pin Diameter0.063 INCHES NOMINAL IN
MaterialPLASTIC POLYAMIDE NYLON BARREL INSULATION
MaterialCOPPER ALLOY CONTACT
Pin Accommodation Diameter0.015 INCHES NOMINAL IN
Retention Groove Diameter0.101 INCHES NOMINAL IN
Pin Length0.231 INCHES NOMINAL IN
Mounting MethodFORCE FIT
Terminal Type and Quantity1 CRIMP AND SOLDER AXIALLY AT ONE END
Cable Entrance Diameter0.022 INCHES NOMINAL IN
Overall Diameter0.156 INCHES NOMINAL IN
Style DesignatorPIN CENTER CONTACT
Surface TreatmentGOLD CONTACT
Surface TreatmentGOLD BODY
Pin Accommodation Length0.284 INCHES NOMINAL IN
MaterialCOPPER ALLOY BODY
Pin Diameter0.063 INCHES NOMINAL IN
MaterialPLASTIC POLYAMIDE NYLON BARREL INSULATION
MaterialCOPPER ALLOY CONTACT
Pin Accommodation Diameter0.015 INCHES NOMINAL IN
Retention Groove Diameter0.101 INCHES NOMINAL IN
Pin Length0.231 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
No Item Name Available
5961-00-857-8559301961 INTERCHANGEABLE
Transistor
Northrop Grumman Corp Electronic Systems Defensive System Div
5999-01-086-6173772307-3 INTERCHANGEABLE
Contact,electrical
Raytheon Company Dba Raytheon
2590-01-548-9234 INTERCHANGEABLE
Pad,cushioning
Cross-Reference Index
Part NumberManufacturer
30-196-1 Bell Textron Inc (USA)
21-33051-23 PRIMARY Amphenol Corp Div Amphenol Aerospace Operations (USA)
Related Parts
5999-01-084-5316SUCCESSOR
NO ITEM NAME AVAILABLE
5961-00-857-8559INTERCHANGEABLE
TRANSISTOR
301961
5999-01-086-6173INTERCHANGEABLE
CONTACT,ELECTRICAL
772307-3
2590-01-548-9234INTERCHANGEABLE
PAD,CUSHIONING

Frequently Asked Questions

What is NSN 5999-00-459-4494?

NSN 5999-00-459-4494 is a Contact,electrical, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-459-4494?

NSN 5999-00-459-4494 has 2 cross-referenced part numbers: 30-196-1 (Bell Textron Inc), 21-33051-23 (Amphenol Corp Div Amphenol Aerospace Operations).

What NSN replaces 5999-00-459-4494?

There are 4 known substitutes for 5999-00-459-4494: 5999-01-084-5316, 5961-00-857-8559, 5999-01-086-6173 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-33051-23?

Key specifications for 21-33051-23: Cable Entrance Diameter: 0.022 INCHES NOMINAL IN; Overall Length: 0.554 INCHES NOMINAL IN; Overall Diameter: 0.156 INCHES NOMINAL IN; Style Designator: PIN CENTER CONTACT. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-459-4494 still in active supply?

NSN 5999-00-459-4494 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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