PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-S-1222Bolt,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-00-298-8336 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-298-8336 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-298-8336. Primary manufacturer part number: MIL-S-1222.
Features
  • Bolt,machine — FSC 5306
  • Material: STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OVERALL
  • Minimum Tensile Strength: 120000 POUNDS PER SQUARE INCH LBS
  • Thread Quantity Per Inch: 24
  • Thread Class: 3A A
  • Fastener Length: 1.500 INCHES NOMINAL IN
  • Grip Length: 0.312 INCHES NOMINAL IN
  • Features Provided: FINISHED HEAD
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1013 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 or Steel Comp 1021 or Steel Comp 1022 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-298-8336, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5306-00-298-8336
Primary Part NumberMIL-S-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
MaterialSTEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OVERALL
Minimum Tensile Strength120000 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch24
Thread Class3A A
Fastener Length1.500 INCHES NOMINAL IN
Grip Length0.312 INCHES NOMINAL IN
Features ProvidedFINISHED HEAD
Thread DirectionRIGHT-HAND
Head StyleHEXAGON
Thread Length1.188 INCHES MINIMUM IN
Width Between Flats0.563 INCHES NOMINAL IN
Head Height0.281 INCHES NOMINAL IN
Hardness Rating23.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
Thread Series DesignatorUNF
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Nondefinitive Spec/std Data1 TYPE AND 5 GRADE
Nominal Thread Diameter0.375 INCHES IN
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
5340-00-804-555190552 SUCCESSOR
Disk,solid,plain
Templeton Kenly and Co Inc
Cross-Reference Index
Part NumberManufacturer
MIL-S-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
100028 General Motors Corp (USA)
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
100028 General Motors Llc Dba General Motors Llc (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
5340-00-804-5551SUCCESSOR
DISK,SOLID,PLAIN
90552
5306-01-282-7489SUCCESSOR
BOLT,MACHINE
5306-01-323-5536SUCCESSOR
BOLT,MACHINE

Frequently Asked Questions

What is NSN 5306-00-298-8336?

NSN 5306-00-298-8336 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 5306-00-298-8336?

NSN 5306-00-298-8336 has 4 cross-referenced part numbers: MIL-S-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 100028 (General Motors Corp), MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 100028 (General Motors Llc Dba General Motors Llc).

What NSN replaces 5306-00-298-8336?

There are 12 known substitutes for 5306-00-298-8336: 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-S-1222?

Key specifications for MIL-S-1222: Material: STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OVERALL; Minimum Tensile Strength: 120000 POUNDS PER SQUARE INCH LBS; Thread Quantity Per Inch: 24; Thread Class: 3A A. 17 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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