PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8B5144Bolt,machine

Caterpillar Inc Div Caterpillar Defense · NSN 5306-00-174-4146 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-174-4146 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-174-4146. Primary manufacturer part number: 8B5144.
Features
  • Bolt,machine — FSC 5306
  • Minimum Tensile Strength: 145000 POUNDS PER SQUARE INCH LBS
  • Material: STEEL COMP E52100 OVERALL
  • Head Height: 0.457 INCHES MINIMUM AND 0.481 INCHES MAXIMUM IN
  • Head Style: HEXAGON
  • Thread Class: 2A A
  • Material Document and Classification: ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp E52100 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-174-4146, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 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
NSN5306-00-174-4146
Primary Part Number8B5144
Item NameBolt,machine
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Minimum Tensile Strength145000 POUNDS PER SQUARE INCH LBS
MaterialSTEEL COMP E52100 OVERALL
Head Height0.457 INCHES MINIMUM AND 0.481 INCHES MAXIMUM IN
Head StyleHEXAGON
Thread Class2A A
Material Document and ClassificationASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNF
Hardness Rating30.0 ROCKWELL C MAXIMUM OVERALL
Grip Length1.750 INCHES NOMINAL IN
Fastener Length3.000 INCHES NOMINAL IN
Nominal Thread Diameter0.625 INCHES IN
Features ProvidedUNFINISHED HEAD
Width Between Flats0.922 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
Thread Length1.250 INCHES MINIMUM IN
Thread Quantity Per Inch18
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
No Item Name Available
Bolt,square Neck
5306-00-226-4835MS90725-42 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-226-4839AEB02C312C50WA6AA1 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-404-1385MS35751-54 SUCCESSOR
Bolt,square Neck
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-550-5030MS35355-145 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
013467 New Holland Construction (USA)
0013467-6 New Holland Construction (USA)
0013467 New Holland Construction (USA)
8B5144 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
MILB857 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5306-00-263-7306SUCCESSOR
NO ITEM NAME AVAILABLE
5306-00-089-1425SUCCESSOR
BOLT,SQUARE NECK
5306-00-226-4835SUCCESSOR
BOLT,MACHINE
MS90725-42
5306-00-226-4839SUCCESSOR
BOLT,MACHINE
AEB02C312C50WA6AA1
5306-00-227-0610SUCCESSOR
BOLT,MACHINE
5306-00-299-2339SUCCESSOR
BOLT,MACHINE
5306-00-299-2380SUCCESSOR
BOLT,MACHINE
5306-00-379-4569SUCCESSOR
BOLT,MACHINE
5306-00-404-1385SUCCESSOR
BOLT,SQUARE NECK
MS35751-54
5306-00-550-5030SUCCESSOR
BOLT,MACHINE
MS35355-145
5306-00-721-5887SUCCESSOR
BOLT,MACHINE
69470
5306-00-068-0373SUCCESSOR
BOLT,MACHINE
5486612 ITEM 23

Frequently Asked Questions

What is NSN 5306-00-174-4146?

NSN 5306-00-174-4146 is a Bolt,machine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-174-4146?

NSN 5306-00-174-4146 has 5 cross-referenced part numbers: 013467 (New Holland Construction), 0013467-6 (New Holland Construction), 0013467 (New Holland Construction), 8B5144 (Caterpillar Inc Div Caterpillar Defense), MILB857 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-00-174-4146?

There are 12 known substitutes for 5306-00-174-4146: 5306-00-263-7306, 5306-00-089-1425, 5306-00-226-4835 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8B5144?

Key specifications for 8B5144: Minimum Tensile Strength: 145000 POUNDS PER SQUARE INCH LBS; Material: STEEL COMP E52100 OVERALL; Head Height: 0.457 INCHES MINIMUM AND 0.481 INCHES MAXIMUM IN; Head Style: HEXAGON. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-174-4146 still in active supply?

NSN 5306-00-174-4146 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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