PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3879Bolt,square Neck

Cnh Industrial America Llc Dba Cnh America · NSN 5306-00-066-8789 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-066-8789 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-066-8789. Primary manufacturer part number: 3879.
Features
  • Bolt,square Neck — FSC 5306
  • Thread Quantity Per Inch: 10
  • Thread Series Designator: UNS
  • Head Diameter: 1.250 INCHES NOMINAL IN
  • Countersink Angle: 86.0 DEGREES NOMINAL
  • Thread Length: 1.500 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Fastener Length: 1.750 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,square Neck, cataloged under National Stock Number 5306-00-066-8789, is classified within Federal Supply Class 5306 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cnh Industrial America Llc Dba Cnh America. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5306-00-066-8789
Primary Part Number3879
Item NameBolt,square Neck
FSC / FSG5306 / 53 — No Item Name Available
ManufacturerCnh Industrial America Llc Dba Cnh America
StatusCANCELLED
Thread Quantity Per Inch10
Thread Series DesignatorUNS
Head Diameter1.250 INCHES NOMINAL IN
Countersink Angle86.0 DEGREES NOMINAL
Thread Length1.500 INCHES NOMINAL IN
Thread Class2A A
Fastener Length1.750 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.750 INCHES IN
Head Height0.562 INCHES NOMINAL IN
Neck Length0.250 INCHES NOMINAL IN
Neck Width0.781 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Head StyleFLAT COUNTERSUNK UNDERCUT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
No Item Name Available
3110-00-100-31103879 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5930-00-659-33442236024G12 INTERCHANGEABLE
Switch Assembly
General Electric Company Dba Ge
5905-01-041-26652507469 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6610-01-225-04163879 INTERCHANGEABLE
Body Assembly
Kearflex Engineering Company
Cross-Reference Index
Part NumberManufacturer
173053 Komatsu American Intl Co (USA)
173053 Komatsu America Corp. (USA)
3879 PRIMARY Cnh Industrial America Llc Dba Cnh America (USA)
Related Parts
5306-01-095-5611SUCCESSOR
NO ITEM NAME AVAILABLE
3110-00-100-3110INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
3879
5930-00-659-3344INTERCHANGEABLE
SWITCH ASSEMBLY
2236024G12
5905-01-041-2665INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
2507469
6610-01-225-0416INTERCHANGEABLE
BODY ASSEMBLY
3879

Frequently Asked Questions

What is NSN 5306-00-066-8789?

NSN 5306-00-066-8789 is a Bolt,square Neck, manufactured by Cnh Industrial America Llc Dba Cnh America, classified under FSC 5306 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5306-00-066-8789?

NSN 5306-00-066-8789 has 3 cross-referenced part numbers: 173053 (Komatsu American Intl Co), 173053 (Komatsu America Corp.), 3879 (Cnh Industrial America Llc Dba Cnh America).

What NSN replaces 5306-00-066-8789?

There are 5 known substitutes for 5306-00-066-8789: 5306-01-095-5611, 3110-00-100-3110, 5930-00-659-3344 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3879?

Key specifications for 3879: Thread Quantity Per Inch: 10; Thread Series Designator: UNS; Head Diameter: 1.250 INCHES NOMINAL IN; Countersink Angle: 86.0 DEGREES NOMINAL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-066-8789 still in active supply?

NSN 5306-00-066-8789 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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