PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-1222Bolt,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-01-288-4512 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-01-288-4512 — this item is cataloged by the U.S. Government under National Stock Number 5306-01-288-4512. Primary manufacturer part number: MIL-DTL-1222.
Features
  • Bolt,machine — FSC 5306
  • Features Provided: FINISHED HEAD
  • Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Thread Class: 2A A
  • Thread Length: 1.000 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Head Style: HEXAGON
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 5306-01-288-4512, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Active.

Technical Specifications
ParameterValue
NSN5306-01-288-4512
Primary Part NumberMIL-DTL-1222
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
StatusACTIVE
Features ProvidedFINISHED HEAD
Head Height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Nominal Thread Diameter0.500 INCHES IN
Thread Class2A A
Thread Length1.000 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Head StyleHEXAGON
Surface TreatmentCHROMATE AND CADMIUM OVERALL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data111 TYPE
Material Document and ClassificationSAE J429 GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Fastener Length4.250 INCHES NOMINAL IN
Width Between Flats0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Quantity Per Inch13
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-270-9422
HAZMATNo
Verified Substitutes 12
5306-00-227-05820.75010UNC2A1.750T1G5BAC SUCCESSOR
Bolt,machine
Nucor Fastener
5306-00-227-0601306-40172 SUCCESSOR
Bolt,machine
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
Bolt,machine
5306-00-281-51641D4703 SUCCESSOR
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-426-34021D4608 SUCCESSOR
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
5306-00-732-77146C-3210 SUCCESSOR
Bolt,machine
Caterpillar Inc Div Caterpillar Defense
Bolt,machine
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M1222B3X8C268GFNZE Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M1222RN8C268GFNZE Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0.500-13UNC-2AX4.250 LG GR 5 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
MIL-S-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AMS-QQ-P416 Society of Automotive Engineers Inc (USA)
Related Parts
SUCCESSOR 5306-00-270-9422 Bolt,machine
5306-00-227-0582SUCCESSOR
BOLT,MACHINE
0.75010UNC2A1.750T1G5BAC
5306-00-227-0601SUCCESSOR
BOLT,MACHINE
306-40172
5306-00-281-5164SUCCESSOR
BOLT,MACHINE
1D4703
5306-00-299-2342SUCCESSOR
BOLT,MACHINE
5306-00-299-2369SUCCESSOR
BOLT,MACHINE
5306-00-299-2378SUCCESSOR
BOLT,MACHINE
5306-00-426-3402SUCCESSOR
BOLT,MACHINE
1D4608
5306-00-732-7714SUCCESSOR
BOLT,MACHINE
6C-3210
5306-01-282-7489SUCCESSOR
BOLT,MACHINE
5306-01-323-5536SUCCESSOR
BOLT,MACHINE
5306-01-327-3526SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-01-288-4512?

NSN 5306-01-288-4512 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: active.

What are the part numbers for NSN 5306-01-288-4512?

NSN 5306-01-288-4512 has 6 cross-referenced part numbers: MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M1222B3X8C268GFNZE (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M1222RN8C268GFNZE (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 0.500-13UNC-2AX4.250 LG GR 5 (American National Standards Institute Incorporated Dba American National Standards Institute), MIL-S-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5306-01-288-4512?

There are 12 known substitutes for 5306-01-288-4512: 5306-00-227-0582, 5306-00-227-0601, 5306-00-270-9422 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-1222?

Key specifications for MIL-DTL-1222: Features Provided: FINISHED HEAD; Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.500 INCHES IN; Thread Class: 2A A. 16 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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