PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

426923Bolt,machine

General Motors Corp · NSN 5306-00-042-6923 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-042-6923 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-042-6923. Primary manufacturer part number: 426923.
Features
  • Bolt,machine — FSC 5306
  • Head Height: 0.172 INCHES NOMINAL IN
  • Width Between Flats: 0.375 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Thread Quantity Per Inch: 20
  • Fastener Length: 4.000 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Surface Treatment: CADMIUM OR ZINC OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1009 or Steel Comp 1010 or Steel Comp 1011 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-042-6923, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-042-6923
Primary Part Number426923
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusCANCELLED
Head Height0.172 INCHES NOMINAL IN
Width Between Flats0.375 INCHES NOMINAL IN
Nominal Thread Diameter0.250 INCHES IN
Thread Quantity Per Inch20
Fastener Length4.000 INCHES NOMINAL IN
Thread Class2A A
Surface TreatmentCADMIUM OR ZINC OVERALL
Nondefinitive Spec/std DataA1 TYPE
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1009 OR STEEL COMP 1010 OR STEEL COMP 1011 OVERALL
Head StyleSQUARE
Thread Length0.750 INCHES MINIMUM IN
Features ProvidedUNFINISHED HEAD
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Departure From Cited DesignatorAS MOD BY THD CLASS
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-010-2484 (102484)
HAZMATNo
Verified Substitutes 12
5306-00-010-2484102484 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
5306-00-010-9177109177 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-019-0882190882 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
5306-00-042-6921426921 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Cross-Reference Index
Part NumberManufacturer
426923 General Motors Corp (USA)
MS35355-9 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFB575 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
SUCCESSOR 5306-00-010-2484 Bolt,machine · 102484
5306-00-010-2495SUCCESSOR
BOLT,MACHINE
5306-00-010-9177SUCCESSOR
BOLT,MACHINE
109177
5306-00-010-9191SUCCESSOR
BOLT,MACHINE
5306-00-013-1286SUCCESSOR
BOLT,MACHINE
5306-00-018-7532SUCCESSOR
BOLT,MACHINE
5306-00-019-0882SUCCESSOR
BOLT,MACHINE
190882
5306-00-021-7840SUCCESSOR
BOLT,MACHINE
5306-00-021-8057SUCCESSOR
BOLT,MACHINE
5306-00-042-6921SUCCESSOR
BOLT,MACHINE
426921
5306-00-042-6924SUCCESSOR
BOLT,MACHINE
5306-00-042-6926SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-042-6923?

NSN 5306-00-042-6923 is a Bolt,machine, manufactured by General Motors Corp, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-042-6923?

NSN 5306-00-042-6923 has 3 cross-referenced part numbers: 426923 (General Motors Corp), MS35355-9 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FFB575 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5306-00-042-6923?

There are 12 known substitutes for 5306-00-042-6923: 5306-00-010-2484, 5306-00-010-2495, 5306-00-010-9177 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 426923?

Key specifications for 426923: Head Height: 0.172 INCHES NOMINAL IN; Width Between Flats: 0.375 INCHES NOMINAL IN; Nominal Thread Diameter: 0.250 INCHES IN; Thread Quantity Per Inch: 20. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-042-6923 still in active supply?

NSN 5306-00-042-6923 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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