PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-123Contact,electrical

Power Connector Llc · NSN 5999-01-496-6475 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-496-6475 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-496-6475. Primary manufacturer part number: 18-123.
Features
  • Contact,electrical — FSC 5999
  • Mounting Method: UNTHREADED HOLE(S)
  • Point Length: 0.320 INCHES NOMINAL IN
  • Point Diameter: 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
  • Overall Diameter: 0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
  • Surface Treatment: GOLD BODY AND CONTACT
  • Style Designator: PIN CONTACT
  • Unthreaded Mounting Hole Diameter: 0.032 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
Applications
  • Applications requiring Copper Alloy Body and Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-01-496-6475, 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 Power Connector Llc. Government technical data includes 16 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-496-6475
Primary Part Number18-123
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerPower Connector Llc
StatusACTIVE
Mounting MethodUNTHREADED HOLE(S)
Point Length0.320 INCHES NOMINAL IN
Point Diameter0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
Overall Diameter0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
Surface TreatmentGOLD BODY AND CONTACT
Style DesignatorPIN CONTACT
Unthreaded Mounting Hole Diameter0.032 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
MaterialCOPPER ALLOY BODY AND CONTACT
Mounting MethodUNTHREADED HOLE(S)
Point Length0.320 INCHES NOMINAL IN
Point Diameter0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
Overall Diameter0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
Surface TreatmentGOLD BODY AND CONTACT
Style DesignatorPIN CONTACT
Unthreaded Mounting Hole Diameter0.032 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
MaterialCOPPER ALLOY BODY AND CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJ
Verified Substitutes 6
4820-00-036-1711005.102.0040 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3110-00-156-357610879 INTERCHANGEABLE
Bearing,ball,annular
Uniontools Inc
5310-00-250-206218123 INTERCHANGEABLE
Washer,flat
Arvinmeritor Inc
3120-00-661-4982 INTERCHANGEABLE
Bearing,sleeve
5925-01-031-991118123 INTERCHANGEABLE
Circuit Breaker
Drs Advanced Isr, Llc
6240-01-480-21751G4023 INTERCHANGEABLE
Lamp,fluorescent
Technical Consumer Products, Inc.
Cross-Reference Index
Part NumberManufacturer
12998055 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
18-123 PRIMARY Power Connector Llc (USA)
Related Parts
4820-00-036-1711INTERCHANGEABLE
DISK,VALVE
005.102.0040
3110-00-156-3576INTERCHANGEABLE
BEARING,BALL,ANNULAR
10879
5310-00-250-2062INTERCHANGEABLE
WASHER,FLAT
18123
3120-00-661-4982INTERCHANGEABLE
BEARING,SLEEVE
5925-01-031-9911INTERCHANGEABLE
CIRCUIT BREAKER
18123
6240-01-480-2175INTERCHANGEABLE
LAMP,FLUORESCENT
1G4023

Frequently Asked Questions

What is NSN 5999-01-496-6475?

NSN 5999-01-496-6475 is a Contact,electrical, manufactured by Power Connector Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-496-6475?

NSN 5999-01-496-6475 has 2 cross-referenced part numbers: 12998055 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 18-123 (Power Connector Llc).

What NSN replaces 5999-01-496-6475?

There are 6 known substitutes for 5999-01-496-6475: 4820-00-036-1711, 3110-00-156-3576, 5310-00-250-2062 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-123?

Key specifications for 18-123: Mounting Method: UNTHREADED HOLE(S); Point Length: 0.320 INCHES NOMINAL IN; Point Diameter: 0.039 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN; Overall Diameter: 0.090 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN. 24 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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