PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM20074-05-40Bolt,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5306-00-051-2344 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-051-2344 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-051-2344. Primary manufacturer part number: NASM20074-05-40.
Features
  • Bolt,machine — FSC 5306
  • Features Provided: FINISHED HEAD
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Width Between Flats: 0.492 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
  • Grip Length: 3.484 INCHES MINIMUM AND 3.516 INCHES MAXIMUM IN
  • Head Style: HEXAGON
  • Thread Class: 3A A
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4140 or Steel Comp 8740 or Steel Comp 8630 or Steel Comp 8735 or Steel Comp 4130 or Steel Comp 4037 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-051-2344, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 22 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-051-2344
Primary Part NumberNASM20074-05-40
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Features ProvidedFINISHED HEAD
Nominal Thread Diameter0.312 INCHES IN
Width Between Flats0.492 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN
Grip Length3.484 INCHES MINIMUM AND 3.516 INCHES MAXIMUM IN
Head StyleHEXAGON
Thread Class3A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hole Quantity6
Thread DirectionRIGHT-HAND
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Thread Quantity Per Inch18
Thread Length0.515 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Hole Configuration StyleHEXAGON LONGITUDINAL HOLE
Hole TypeDRILLED
Surface Treatment Document and ClassificationQQ-P-416 TY2 CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL
MaterialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
Material Document and ClassificationMIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL
Fastener Length4.031 INCHES MINIMUM AND 4.078 INCHES MAXIMUM IN
Hole Diameter0.070 INCHES NOMINAL IN
Head Height0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM IN
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
No Item Name Available
Bolt,close Tolerance
Bolt,close Tolerance
Bolt,close Tolerance
Bolt,close Tolerance
Bolt,close Tolerance
Bolt,close Tolerance
Bolt,machine
5306-00-206-9577AN6H25 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Bolt,close Tolerance
Cross-Reference Index
Part NumberManufacturer
AN75A40 Aeronautical Standards Group Dept of Navy and Air Force (USA)
MS20074-05-40 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
B6812 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NASM20074-05-40 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5306-00-150-9150SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-141-4507SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-151-1062SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-151-1063SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-151-3196SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-156-2457SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-167-3925SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-182-1815SUCCESSOR
BOLT,MACHINE
5306-00-206-9577SUCCESSOR
BOLT,MACHINE
AN6H25
5306-00-275-9525SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-582-5753SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-630-2118SUCCESSOR
BOLT,CLOSE TOLERANCE

Frequently Asked Questions

What is NSN 5306-00-051-2344?

NSN 5306-00-051-2344 is a Bolt,machine, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-051-2344?

NSN 5306-00-051-2344 has 4 cross-referenced part numbers: AN75A40 (Aeronautical Standards Group Dept of Navy and Air Force), MS20074-05-40 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), B6812 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NASM20074-05-40 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5306-00-051-2344?

There are 12 known substitutes for 5306-00-051-2344: 5306-00-150-9150, 5306-00-141-4507, 5306-00-151-1062 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM20074-05-40?

Key specifications for NASM20074-05-40: Features Provided: FINISHED HEAD; Nominal Thread Diameter: 0.312 INCHES IN; Width Between Flats: 0.492 INCHES MINIMUM AND 0.501 INCHES MAXIMUM IN; Grip Length: 3.484 INCHES MINIMUM AND 3.516 INCHES MAXIMUM IN. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-051-2344 still in active supply?

NSN 5306-00-051-2344 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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