PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN174-40Bolt,close Tolerance

Aeronautical Standards Group Dept of Navy and Air Force · NSN 5306-00-151-1062 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-151-1062 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-151-1062. Primary manufacturer part number: AN174-40.
Features
  • Bolt,close Tolerance — FSC 5306
  • Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
  • Width Between Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
  • Distance From Head Largest Bearing Surface to Shank Hole Center: 3.858 INCHES MINIMUM AND 3.890 INCHES MAXIMUM FIRST HOLE IN
  • Thread Direction: RIGHT-HAND
  • Grip Diameter: 0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN
  • Grip Length: 3.546 INCHES MINIMUM AND 3.578 INCHES MAXIMUM IN
  • Head Style: HEXAGON
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 8740 or Steel Comp 8630 or Steel Comp 8735 or Steel Comp 4037 or Steel Comp 4130 or Steel Comp 4140 Overall construction
General Description

The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-151-1062, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5306-00-151-1062
Primary Part NumberAN174-40
Item NameBolt,close Tolerance
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusCANCELLED
Head Height0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
Width Between Flats0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Distance From Head Largest Bearing Surface to Shank Hole Center3.858 INCHES MINIMUM AND 3.890 INCHES MAXIMUM FIRST HOLE IN
Thread DirectionRIGHT-HAND
Grip Diameter0.2487 INCHES MINIMUM AND 0.2492 INCHES MAXIMUM IN
Grip Length3.546 INCHES MINIMUM AND 3.578 INCHES MAXIMUM IN
Head StyleHEXAGON
Shank Unthreaded Hole Diameter0.076 INCHES NOMINAL FIRST HOLE IN
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Fastener Length4.015 INCHES MINIMUM AND 4.062 INCHES MAXIMUM IN
Hole Quantity1
Nominal Thread Diameter0.250 INCHES IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Hole TypeDRILLED
Thread Class3A A
Thread Series DesignatorUNF
Thread Length0.437 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
Thread Quantity Per Inch28
Surface Finish63.0 MICROINCHES BEARING SURFACE OF HEAD
Material Document and ClassificationMIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR AMS 6300 ASSN STD 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 6TH MATERIAL RESPONSE OVERALL
Hole Diameter0.046 INCHES NOMINAL IN
MaterialSTEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 4140 OVERALL
Hole Configuration StyleHEXAGON FLATS
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-051-2338
HAZMATNo
Verified Substitutes 12
No Item Name Available
Bolt,machine
Bolt,machine
5306-00-051-2344NASM20074-05-40 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Bolt,machine
Bolt,close Tolerance
Bolt,machine
Bolt,machine
5306-00-144-3686AN3-55 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
AN174-40 Aeronautical Standards Group Dept of Navy and Air Force (USA)
B6812 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AN174H40 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
SUCCESSOR 5306-00-051-2338 Bolt,machine
5306-00-180-0458SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-051-2343SUCCESSOR
BOLT,MACHINE
5306-00-051-2344SUCCESSOR
BOLT,MACHINE
NASM20074-05-40
5306-00-051-2349SUCCESSOR
BOLT,MACHINE
5306-00-141-4519SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-141-4712SUCCESSOR
BOLT,MACHINE
5306-00-141-4716SUCCESSOR
BOLT,MACHINE
5306-00-144-3686SUCCESSOR
BOLT,MACHINE
AN3-55
5306-00-144-3692SUCCESSOR
BOLT,MACHINE
5306-00-144-3700SUCCESSOR
BOLT,MACHINE
5306-00-144-3711SUCCESSOR
BOLT,CLOSE TOLERANCE

Frequently Asked Questions

What is NSN 5306-00-151-1062?

NSN 5306-00-151-1062 is a Bolt,close Tolerance, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-151-1062?

NSN 5306-00-151-1062 has 3 cross-referenced part numbers: AN174-40 (Aeronautical Standards Group Dept of Navy and Air Force), B6812 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AN174H40 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5306-00-151-1062?

There are 12 known substitutes for 5306-00-151-1062: 5306-00-180-0458, 5306-00-051-2338, 5306-00-051-2343 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AN174-40?

Key specifications for AN174-40: Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Width Between Flats: 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN; Distance From Head Largest Bearing Surface to Shank Hole Center: 3.858 INCHES MINIMUM AND 3.890 INCHES MAXIMUM FIRST HOLE IN; Thread Direction: RIGHT-HAND. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-151-1062 still in active supply?

NSN 5306-00-151-1062 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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