PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-B-6812Bolt,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-00-151-0709 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-151-0709 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-151-0709. Primary manufacturer part number: MIL-B-6812.
Features
  • Bolt,machine — FSC 5306
  • Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS
  • Grip Length: 3.500 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Width Between Flats: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Material Document and Classification: MIL-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-5626 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 6TH MATERIAL RESPONSE OVERALL
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 4140 or Steel Comp 4130 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-151-0709, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 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
NSN5306-00-151-0709
Primary Part NumberMIL-B-6812
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Grip Length3.500 INCHES NOMINAL IN
Head StyleHEXAGON
Width Between Flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Thread DirectionRIGHT-HAND
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-5626 MIL SPEC 5TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 6TH MATERIAL RESPONSE OVERALL
Head Height0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
Hole Diameter0.070 INCHES NOMINAL IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Thread Length0.531 INCHES MINIMUM IN
Hole TypeDRILLED
Thread Series DesignatorUNF
Surface TreatmentCADMIUM AND CHROMATE OVERALL
MaterialSTEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4037 OR STEEL COMP 4140 OR STEEL COMP 4130 OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Thread Class3A A
Hole Configuration StyleHEXAGON FLATS
Hole Quantity6
Features ProvidedFINISHED HEAD
Thread Quantity Per Inch28
Fastener Length4.031 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
No Item Name Available
Bolt,machine
Bolt,machine
Bolt,close Tolerance
Bolt,close Tolerance
5306-00-150-9233AN5-40A SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,clevis
Cross-Reference Index
Part NumberManufacturer
MIL-B-6812 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS20073-04-40 Wbparts Inc (USA)
MS20073-04-40 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS20073-04-40 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS20073-04-40 Kapco Industries Inc (USA)
AN74-40 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5306-00-292-8270SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-063-3268SUCCESSOR
BOLT,MACHINE
5306-00-144-3646SUCCESSOR
BOLT,MACHINE
5306-00-144-4058SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-150-9097SUCCESSOR
BOLT,CLOSE TOLERANCE
5306-00-150-9233SUCCESSOR
BOLT,MACHINE
AN5-40A
5306-00-150-9866SUCCESSOR
BOLT,MACHINE
5306-00-150-9867SUCCESSOR
BOLT,MACHINE
5306-00-150-9868SUCCESSOR
BOLT,MACHINE
5306-00-151-0656SUCCESSOR
BOLT,CLEVIS
5306-00-151-1084SUCCESSOR
BOLT,MACHINE
5306-00-151-2603SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-151-0709?

NSN 5306-00-151-0709 is a Bolt,machine, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-151-0709?

NSN 5306-00-151-0709 has 6 cross-referenced part numbers: MIL-B-6812 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS20073-04-40 (Wbparts Inc), MS20073-04-40 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS20073-04-40 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS20073-04-40 (Kapco Industries Inc) and 1 more.

What NSN replaces 5306-00-151-0709?

There are 12 known substitutes for 5306-00-151-0709: 5306-00-292-8270, 5306-00-063-3268, 5306-00-144-3646 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-B-6812?

Key specifications for MIL-B-6812: Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS; Grip Length: 3.500 INCHES NOMINAL IN; Head Style: HEXAGON; Width Between Flats: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-151-0709 still in active supply?

NSN 5306-00-151-0709 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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