PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M1222B2N14C248GCNZEBolt,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-00-299-2339 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-299-2339 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-299-2339. Primary manufacturer part number: M1222B2N14C248GCNZE.
Features
  • Bolt,machine — FSC 5306
  • Head Style: HEXAGON
  • Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS
  • Features Provided: FINISHED HEAD
  • Thread Quantity Per Inch: 9
  • Fastener Length: 3.000 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Width Between Flats: 1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-299-2339, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, 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
NSN5306-00-299-2339
Primary Part NumberM1222B2N14C248GCNZE
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
Head StyleHEXAGON
Minimum Tensile Strength55000 POUNDS PER SQUARE INCH LBS
Features ProvidedFINISHED HEAD
Thread Quantity Per Inch9
Fastener Length3.000 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Width Between Flats1.269 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN
Thread Length2.000 INCHES MINIMUM IN
Thread Class2A A
Nominal Thread Diameter0.875 INCHES IN
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationQQ-Z-325,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Hardness Rating95.0 ROCKWELL B MAXIMUM OVERALL
Surface TreatmentZINC OVERALL
Nondefinitive Spec/std Data2 TYPE AND 2 GRADE
Head Height0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
Material Document and ClassificationSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-043-4568 (H2212PC9)
HAZMATNo
Verified Substitutes 12
5306-00-043-4568H2212PC9 SUCCESSOR
Bolt,machine
Siemens Energy, Inc.
Bolt,machine
5306-00-068-03735486612 ITEM 23 SUCCESSOR
Bolt,machine
Naval Sea Systems Command
Bolt,machine
5306-00-174-0537134972PC5 SUCCESSOR
Bolt,machine
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5306-00-174-41468B5144 SUCCESSOR
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
M1222B2N14C248GCNZE Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILB857 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222J Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILB857TYPE2GRADE2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
SUCCESSOR 5306-00-043-4568 Bolt,machine · H2212PC9
5306-00-054-8282SUCCESSOR
BOLT,MACHINE
5306-00-068-0373SUCCESSOR
BOLT,MACHINE
5486612 ITEM 23
5306-00-174-0536SUCCESSOR
BOLT,MACHINE
5306-00-174-0537SUCCESSOR
BOLT,MACHINE
134972PC5
5306-00-174-4146SUCCESSOR
BOLT,MACHINE
8B5144
5306-00-174-9479SUCCESSOR
BOLT,MACHINE
5306-00-174-9505SUCCESSOR
BOLT,MACHINE
5306-00-174-9546SUCCESSOR
BOLT,MACHINE
5306-00-174-9551SUCCESSOR
BOLT,MACHINE
5306-00-174-9617SUCCESSOR
BOLT,MACHINE
5306-00-174-9744SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-299-2339?

NSN 5306-00-299-2339 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 5306-00-299-2339?

NSN 5306-00-299-2339 has 4 cross-referenced part numbers: M1222B2N14C248GCNZE (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILB857 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222J (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILB857TYPE2GRADE2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-00-299-2339?

There are 12 known substitutes for 5306-00-299-2339: 5306-00-043-4568, 5306-00-054-8282, 5306-00-068-0373 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M1222B2N14C248GCNZE?

Key specifications for M1222B2N14C248GCNZE: Head Style: HEXAGON; Minimum Tensile Strength: 55000 POUNDS PER SQUARE INCH LBS; Features Provided: FINISHED HEAD; Thread Quantity Per Inch: 9. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-299-2339 still in active supply?

NSN 5306-00-299-2339 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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