PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-1222TY1GR2Bolt,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-00-299-2380 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-299-2380 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-299-2380. Primary manufacturer part number: MIL-DTL-1222TY1GR2.
Features
  • Bolt,machine — FSC 5306
  • Surface Treatment: ZINC OVERALL
  • Material Document and Classification: SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Quantity Per Inch: 20
  • Width Between Flats: 0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
  • Fastener Length: 2.500 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Features Provided: FINISHED HEAD
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 5306-00-299-2380, 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 6 commercial cross-references from 2 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
NSN5306-00-299-2380
Primary Part NumberMIL-DTL-1222TY1GR2
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
Surface TreatmentZINC OVERALL
Material Document and ClassificationSAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Quantity Per Inch20
Width Between Flats0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Fastener Length2.500 INCHES NOMINAL IN
Thread Class2A A
Features ProvidedFINISHED HEAD
Thread DirectionRIGHT-HAND
Head StyleHEXAGON
Head Height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Thread Length0.750 INCHES MINIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Hardness Rating23.0 ROCKWELL C MAXIMUM OVERALL
Surface Treatment Document and ClassificationQQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Minimum Tensile Strength69000 POUNDS PER SQUARE INCH LBS
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data2 TYPE AND 2 GRADE
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5306-00-010-2484 (102484)
HAZMATNo
Verified Substitutes 12
5306-00-010-2484102484 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
5306-00-010-9177109177 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-019-0882190882 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Bolt,machine
Bolt,machine
5306-00-042-6921426921 SUCCESSOR
Bolt,machine
General Motors Llc Dba General Motors Llc
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222TY1GR2 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
MIL-B-857 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M1222RN4C240GCNZE Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FFB575 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
SUCCESSOR 5306-00-010-2484 Bolt,machine · 102484
5306-00-010-2495SUCCESSOR
BOLT,MACHINE
5306-00-010-9177SUCCESSOR
BOLT,MACHINE
109177
5306-00-010-9191SUCCESSOR
BOLT,MACHINE
5306-00-013-1286SUCCESSOR
BOLT,MACHINE
5306-00-018-7532SUCCESSOR
BOLT,MACHINE
5306-00-019-0882SUCCESSOR
BOLT,MACHINE
190882
5306-00-021-7840SUCCESSOR
BOLT,MACHINE
5306-00-021-8057SUCCESSOR
BOLT,MACHINE
5306-00-042-6921SUCCESSOR
BOLT,MACHINE
426921
5306-00-042-6924SUCCESSOR
BOLT,MACHINE
5306-00-042-6926SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-299-2380?

NSN 5306-00-299-2380 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 5306-00-299-2380?

NSN 5306-00-299-2380 has 6 cross-referenced part numbers: MIL-DTL-1222TY1GR2 (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), MIL-B-857 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M1222RN4C240GCNZE (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5306-00-299-2380?

There are 12 known substitutes for 5306-00-299-2380: 5306-00-010-2484, 5306-00-010-2495, 5306-00-010-9177 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-1222TY1GR2?

Key specifications for MIL-DTL-1222TY1GR2: Surface Treatment: ZINC OVERALL; Material Document and Classification: SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Quantity Per Inch: 20; Width Between Flats: 0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5306-00-299-2380 still in active supply?

NSN 5306-00-299-2380 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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