PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN7-45Bolt,machine

Aeronautical Standards Group Dept of Navy and Air Force · NSN 5306-00-156-2658 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-156-2658 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-156-2658. Primary manufacturer part number: AN7-45.
Features
  • Bolt,machine — FSC 5306
  • Thread Direction: RIGHT-HAND
  • Width Between Flats: 0.615 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
  • Head Style: HEXAGON
  • Head Height: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
  • Thread Class: 3A A
  • Grip Length: 4.062 INCHES NOMINAL IN
  • Thread Series Designator: UNF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4037 or Steel Comp 4130 or Steel Comp 8630 or Steel Comp 8735 or Steel Comp 8740 or Steel Comp 4140 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-156-2658, 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 20 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
NSN5306-00-156-2658
Primary Part NumberAN7-45
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Thread DirectionRIGHT-HAND
Width Between Flats0.615 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
Head StyleHEXAGON
Head Height0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
Thread Class3A A
Grip Length4.062 INCHES NOMINAL IN
Thread Series DesignatorUNF
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Fastener Length4.719 INCHES NOMINAL IN
Features ProvidedFINISHED HEAD
Surface TreatmentCADMIUM AND CHROMATE OVERALL
MaterialSTEEL COMP 4037 OR STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Material Document and ClassificationMIL-B-6812 MIL SPEC ALL MATERIAL RESPONSES OVERALL
Thread Quantity Per Inch20
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Distance From Head Largest Bearing Surface to Shank Hole Center4.546 INCHES NOMINAL FIRST HOLE IN
Shank Unthreaded Hole Diameter0.106 INCHES NOMINAL FIRST HOLE IN
Nominal Thread Diameter0.438 INCHES IN
Thread Length0.657 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5306-00-620-8294MS20073-04-05 INTERCHANGEABLE
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
AN7-45 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5306-00-620-8294INTERCHANGEABLE
BOLT,MACHINE
MS20073-04-05

Frequently Asked Questions

What is NSN 5306-00-156-2658?

NSN 5306-00-156-2658 is a Bolt,machine, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-156-2658?

NSN 5306-00-156-2658 has 1 cross-referenced part number: AN7-45 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5306-00-156-2658?

There is 1 known substitute for 5306-00-156-2658: 5306-00-620-8294. Verify interchangeability with system specifications before substitution.

What are the specifications of AN7-45?

Key specifications for AN7-45: Thread Direction: RIGHT-HAND; Width Between Flats: 0.615 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN; Head Style: HEXAGON; Head Height: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN. 20 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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