PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

83979Screw,externally Relieved Body

Cooper Industries Inc Champion Aviation Products · NSN 5305-01-143-0153 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-143-0153 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-143-0153. Primary manufacturer part number: 83979.
Features
  • Screw,externally Relieved Body — FSC 5305
  • Thread Length: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
  • Head Diameter: 0.124 INCHES NOMINAL0.124 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.086 INCHES0.086 INCHES IN
  • Thread Quantity Per Inch: 5656
  • Internal Drive Style: SLOTSLOT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
  • Thread Class: 2A2A
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-143-0153, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cooper Industries Inc Champion Aviation Products. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-143-0153
Primary Part Number83979
Item NameScrew,externally Relieved Body
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCooper Industries Inc Champion Aviation Products
StatusACTIVE
Thread Length0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
Head Diameter0.124 INCHES NOMINAL0.124 INCHES NOMINAL IN
Nominal Thread Diameter0.086 INCHES0.086 INCHES IN
Thread Quantity Per Inch5656
Internal Drive StyleSLOTSLOT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
Thread Class2A2A
MaterialSTEEL CORROSION RESISTING OVERALL
Thread DirectionRIGHT-HANDRIGHT-HAND
Surface TreatmentOXIDE OVERALLOXIDE OVERALL
Fastener Length0.625 INCHES NOMINAL0.625 INCHES NOMINAL IN
Head StyleFILLISTERFILLISTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-00-022-483689738 INTERCHANGEABLE
Switch,mercury
Whirlpool Corp Dba Whirlpool Corp
Cross-Reference Index
Part NumberManufacturer
83979 Cooper Industries Inc Champion Aviation Products (USA)
Related Parts
5930-00-022-4836INTERCHANGEABLE
SWITCH,MERCURY
89738

Frequently Asked Questions

What is NSN 5305-01-143-0153?

NSN 5305-01-143-0153 is a Screw,externally Relieved Body, manufactured by Cooper Industries Inc Champion Aviation Products, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-143-0153?

NSN 5305-01-143-0153 has 1 cross-referenced part number: 83979 (Cooper Industries Inc Champion Aviation Products).

What NSN replaces 5305-01-143-0153?

There is 1 known substitute for 5305-01-143-0153: 5930-00-022-4836. Verify interchangeability with system specifications before substitution.

What are the specifications of 83979?

Key specifications for 83979: Thread Length: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN; Head Diameter: 0.124 INCHES NOMINAL0.124 INCHES NOMINAL IN; Nominal Thread Diameter: 0.086 INCHES0.086 INCHES IN; Thread Quantity Per Inch: 5656. 12 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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