PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-1222JBolt,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-00-263-4038 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-263-4038 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-263-4038. Primary manufacturer part number: MIL-DTL-1222J.
Features
  • Bolt,machine — FSC 5306
  • Width Between Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
  • Features Provided: FINISHED HEAD
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Thread Quantity Per Inch: 16
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nondefinitive Spec/std Data: 3 TYPE AND 2 GRADE
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 5306-00-263-4038, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 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
NSN5306-00-263-4038
Primary Part NumberMIL-DTL-1222J
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
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Features ProvidedFINISHED HEAD
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Nominal Thread Diameter0.375 INCHES IN
Thread Quantity Per Inch16
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nondefinitive Spec/std Data3 TYPE AND 2 GRADE
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Head StyleHEXAGON
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
Fastener Length1.625 INCHES NOMINAL IN
Thread Class2A A
Thread Length0.750 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5306-00-012-2065 (122065)
HAZMATNo
Verified Substitutes 12
Bolt,square Neck
5306-00-226-4835MS90725-42 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-226-4839AEB02C312C50WA6AA1 SUCCESSOR
Bolt,machine
The American Society of Mechanical Engineers
Bolt,machine
Bolt,machine
Bolt,machine
Bolt,machine
5306-00-404-1385MS35751-54 SUCCESSOR
Bolt,square Neck
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-550-5030MS35355-145 SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-00-638-5811AN10H20A SUCCESSOR
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222J Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2A-4639 Pon Equipment B.v. (NLD)
MILB857 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M1222B3W6C226GCNZE Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
50028717 Baes Gcs Terrier Ssc 3 Project (GBR)
50028717 Rbsl Washington (GBR)
2A4639 Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
SUCCESSOR 5306-00-012-2065 Bolt,machine · 122065
5306-00-089-1425SUCCESSOR
BOLT,SQUARE NECK
5306-00-226-4835SUCCESSOR
BOLT,MACHINE
MS90725-42
5306-00-226-4839SUCCESSOR
BOLT,MACHINE
AEB02C312C50WA6AA1
5306-00-227-0610SUCCESSOR
BOLT,MACHINE
5306-00-299-2339SUCCESSOR
BOLT,MACHINE
5306-00-299-2380SUCCESSOR
BOLT,MACHINE
5306-00-379-4569SUCCESSOR
BOLT,MACHINE
5306-00-404-1385SUCCESSOR
BOLT,SQUARE NECK
MS35751-54
5306-00-550-5030SUCCESSOR
BOLT,MACHINE
MS35355-145
5306-00-638-5811SUCCESSOR
BOLT,MACHINE
AN10H20A
5306-00-721-5887SUCCESSOR
BOLT,MACHINE
69470

Frequently Asked Questions

What is NSN 5306-00-263-4038?

NSN 5306-00-263-4038 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 5306-00-263-4038?

NSN 5306-00-263-4038 has 7 cross-referenced part numbers: MIL-DTL-1222J (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2A-4639 (Pon Equipment B.v.), MILB857 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M1222B3W6C226GCNZE (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 50028717 (Baes Gcs Terrier Ssc 3 Project) and 2 more.

What NSN replaces 5306-00-263-4038?

There are 12 known substitutes for 5306-00-263-4038: 5306-00-089-1425, 5306-00-226-4835, 5306-00-226-4839 and 9 more. Verify interchangeability with system specifications before substitution.

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

Key specifications for MIL-DTL-1222J: Width Between Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; End Item Identification: LOGISTICS SUPPORT VESSEL; Features Provided: FINISHED HEAD; Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS. 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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