PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN5-40ABolt,machine

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5306-00-150-9233 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-150-9233 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-150-9233. Primary manufacturer part number: AN5-40A.
Features
  • Bolt,machine — FSC 5306
  • Nominal Thread Diameter: 0.312 INCHES IN
  • Width Between Flats: 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
  • Thread Class: 3A A
  • Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS
  • Thread Direction: RIGHT-HAND
  • Material: STEEL 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 Classification: MIL-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
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 5306-00-150-9233, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Active.

Technical Specifications
ParameterValue
NSN5306-00-150-9233
Primary Part NumberAN5-40A
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
StatusACTIVE
Nominal Thread Diameter0.312 INCHES IN
Width Between Flats0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
Thread Class3A A
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Thread DirectionRIGHT-HAND
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
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TYPE2,CLASS3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Head StyleHEXAGON
Features ProvidedFINISHED HEAD
Thread Series DesignatorUNF
Thread Length0.500 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Head Height0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN
Fastener Length4.078 INCHES MINIMUM AND 4.125 INCHES MAXIMUM IN
Thread Quantity Per Inch24
Grip Length3.547 INCHES MINIMUM AND 3.578 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-063-3268
HAZMATNo
Verified Substitutes 12
Bolt,machine
Bolt,machine
Bolt,close Tolerance
Bolt,close Tolerance
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,clevis
Bolt,machine
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
MILB6812 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
AN5-40A Aeronautical Standards Group Dept of Navy and Air Force (USA)
MILB6812 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN5-40A PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
SUCCESSOR 5306-00-063-3268 Bolt,machine
5306-00-144-3646SUCCESSOR
BOLT,MACHINE
5306-00-144-4058SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-150-9097SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-150-9866SUCCESSOR
BOLT,MACHINE
5306-00-150-9867SUCCESSOR
BOLT,MACHINE
5306-00-150-9868SUCCESSOR
BOLT,MACHINE
5306-00-151-0656SUCCESSOR
BOLT,CLEVIS
5306-00-151-0709SUCCESSOR
BOLT,MACHINE
5306-00-151-1084SUCCESSOR
BOLT,MACHINE
5306-00-151-2513SUCCESSOR
BOLT,MACHINE
5306-00-151-2603SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-150-9233?

NSN 5306-00-150-9233 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: active.

What are the part numbers for NSN 5306-00-150-9233?

NSN 5306-00-150-9233 has 4 cross-referenced part numbers: MILB6812 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), AN5-40A (Aeronautical Standards Group Dept of Navy and Air Force), MILB6812 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AN5-40A (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5306-00-150-9233?

There are 12 known substitutes for 5306-00-150-9233: 5306-00-063-3268, 5306-00-144-3646, 5306-00-144-4058 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN5-40A?

Key specifications for AN5-40A: Nominal Thread Diameter: 0.312 INCHES IN; Width Between Flats: 0.490 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Thread Class: 3A A; Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS. 18 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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