PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS20073-04-26Bolt,machine

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-00-082-4681 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-082-4681 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-082-4681. Primary manufacturer part number: MS20073-04-26.
Features
  • Bolt,machine — FSC 5306
  • Head Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Hole Quantity: 6
  • Fastener Length: 2.765 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Features Provided: FINISHED HEAD
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES 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 5306-00-082-4681, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-082-4681
Primary Part NumberMS20073-04-26
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Head StyleHEXAGON
Thread DirectionRIGHT-HAND
Hole Quantity6
Fastener Length2.765 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Features ProvidedFINISHED HEAD
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Hardness Rating26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
MaterialSTEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL
Thread Quantity Per Inch28
Hole TypeDRILLED
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Hole Diameter0.070 INCHES NOMINAL IN
Hole Configuration StyleHEXAGON LONGITUDINAL HOLE
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
Thread Series DesignatorUNF
Grip Length2.234 INCHES MINIMUM AND 2.266 INCHES MAXIMUM IN
Width Between Flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
Thread Class3A A
Head Height0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
Thread Length0.499 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
No Item Name Available
3110-00-100-0329572 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
Cross-Reference Index
Part NumberManufacturer
MS20073-04-26 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
518-22 Anchor Post Products of Texas Inc (USA)
MS20073-04-26 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
518-22 Anchor Post Products Inc Sub of Ppa Industries Inc (USA)
Related Parts
5306-00-151-0720SUCCESSOR
NO ITEM NAME AVAILABLE
3110-00-100-0329INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
572

Frequently Asked Questions

What is NSN 5306-00-082-4681?

NSN 5306-00-082-4681 is a Bolt,machine, manufactured by Military Standards Promulgated by Military Departments 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 5306-00-082-4681?

NSN 5306-00-082-4681 has 4 cross-referenced part numbers: MS20073-04-26 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 518-22 (Anchor Post Products of Texas Inc), MS20073-04-26 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 518-22 (Anchor Post Products Inc Sub of Ppa Industries Inc).

What NSN replaces 5306-00-082-4681?

There are 2 known substitutes for 5306-00-082-4681: 5306-00-151-0720, 3110-00-100-0329. Verify interchangeability with system specifications before substitution.

What are the specifications of MS20073-04-26?

Key specifications for MS20073-04-26: Head Style: HEXAGON; Thread Direction: RIGHT-HAND; Hole Quantity: 6; Fastener Length: 2.765 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-082-4681 still in active supply?

NSN 5306-00-082-4681 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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