PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-B-6812Bolt,machine

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5306-00-150-9868 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-150-9868 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-150-9868. Primary manufacturer part number: MIL-B-6812.
Features
  • Bolt,machine — FSC 5306
  • Features Provided: FINISHED HEAD
  • Thread Quantity Per Inch: 28
  • Head Style: HEXAGON
  • Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS
  • Grip Length: 2.047 INCHES MINIMUM AND 2.078 INCHES MAXIMUM IN
  • Thread Length: 0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
  • Hardness Rating: 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 431 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-150-9868, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 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
NSN5306-00-150-9868
Primary Part NumberMIL-B-6812
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Features ProvidedFINISHED HEAD
Thread Quantity Per Inch28
Head StyleHEXAGON
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Grip Length2.047 INCHES MINIMUM AND 2.078 INCHES MAXIMUM IN
Thread Length0.438 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Fastener Length2.516 INCHES MINIMUM AND 2.562 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Thread DirectionRIGHT-HAND
Surface TreatmentPASSIVATE OVERALL
Head Height0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
Material Document and ClassificationMIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 431 OVERALL
Thread Series DesignatorUNF
Width Between Flats0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
Thread Class3A A
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-063-3268
HAZMATNo
Verified Substitutes 12
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,clevis
Bolt,machine
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
MIL-B-6812 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS20034-20 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MIL-B-6812 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
128C601D004C3 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
MS20034-20 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AN4C24A Aeronautical Standards Group Dept of Navy and Air Force (USA)
128C601D004C24A Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (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
5306-00-150-9233SUCCESSOR
BOLT,MACHINE
AN5-40A
5306-00-150-9866SUCCESSOR
BOLT,MACHINE
5306-00-150-9867SUCCESSOR
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 5306-00-150-9868?

NSN 5306-00-150-9868 is a Bolt,machine, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5306 (No Item Name Available). Status: active.

What are the part numbers for NSN 5306-00-150-9868?

NSN 5306-00-150-9868 has 7 cross-referenced part numbers: MIL-B-6812 (Federal Specifications Promulgated by General Services Administration Washington DC), MS20034-20 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MIL-B-6812 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 128C601D004C3 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), MS20034-20 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 5306-00-150-9868?

There are 12 known substitutes for 5306-00-150-9868: 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 MIL-B-6812?

Key specifications for MIL-B-6812: Features Provided: FINISHED HEAD; Thread Quantity Per Inch: 28; Head Style: HEXAGON; Minimum Tensile Strength: 125000 POUNDS PER SQUARE INCH LBS. 17 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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