PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-S-1222HBolt,machine

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5306-00-551-5836 · FSC 5306 · No Item Name Available
Verified by PartsTable
NSN 5306-00-551-5836 — this item is cataloged by the U.S. Government under National Stock Number 5306-00-551-5836. Primary manufacturer part number: MIL-S-1222H.
Features
  • Bolt,machine — FSC 5306
  • Surface Treatment: PASSIVATE OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 316 GRADE
  • Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Class: 3A A
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Minimum Tensile Strength: 75000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 316 Overall construction
General Description

The Bolt,machine, cataloged under National Stock Number 5306-00-551-5836, 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 1 commercial cross-reference 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: Active.

Technical Specifications
ParameterValue
NSN5306-00-551-5836
Primary Part NumberMIL-S-1222H
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
Surface TreatmentPASSIVATE OVERALL
Nondefinitive Spec/std Data1 TYPE AND 316 GRADE
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Class3A A
Nominal Thread Diameter0.375 INCHES IN
Minimum Tensile Strength75000 POUNDS PER SQUARE INCH LBS
Thread Length1.000 INCHES MINIMUM IN
Head StyleHEXAGON
Head Height0.226 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN
Width Between Flats0.544 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Fastener Length1.125 INCHES NOMINAL IN
Thread Quantity Per Inch16
Minimum Yield Strength30000 POUNDS PER SQUARE INCH LBS
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Features ProvidedFINISHED HEAD
Thread DirectionRIGHT-HAND
MaterialSTEEL COMP 316 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
Bolt,machine
Bolt,machine
Bolt,machine
5306-01-482-4723803-1385637-05X-23 SUCCESSOR
Bolt,machine
Naval Ship Systems Command
Bolt,machine
5305-00-226-9220 INTERCHANGEABLE
Screw,cap,hexagon Head
5306-00-227-0932 INTERCHANGEABLE
Bolt,machine
5307-00-248-7987 INTERCHANGEABLE
Stud,plain
5306-00-263-7479 INTERCHANGEABLE
Bolt,machine
5305-00-266-4105 INTERCHANGEABLE
Screw,cap,hexagon Head
Cross-Reference Index
Part NumberManufacturer
MIL-S-1222H Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5306-00-270-8290SUCCESSOR
BOLT,MACHINE
5306-00-270-9456SUCCESSOR
BOLT,MACHINE
5306-01-482-4720SUCCESSOR
BOLT,MACHINE
5306-01-482-4723SUCCESSOR
BOLT,MACHINE
803-1385637-05X-23
5306-01-482-4724SUCCESSOR
BOLT,MACHINE
5305-00-226-9220INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-227-0932INTERCHANGEABLE
BOLT,MACHINE
5307-00-248-7987INTERCHANGEABLE
STUD,PLAIN
5306-00-263-7479INTERCHANGEABLE
BOLT,MACHINE
5305-00-266-4105INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-273-6098INTERCHANGEABLE
BOLT,MACHINE
5306-00-285-3532INTERCHANGEABLE
BOLT,MACHINE
X04

Frequently Asked Questions

What is NSN 5306-00-551-5836?

NSN 5306-00-551-5836 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 5306-00-551-5836?

NSN 5306-00-551-5836 has 1 cross-referenced part number: MIL-S-1222H (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5306-00-551-5836?

There are 12 known substitutes for 5306-00-551-5836: 5306-00-270-8290, 5306-00-270-9456, 5306-01-482-4720 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-S-1222H?

Key specifications for MIL-S-1222H: Surface Treatment: PASSIVATE OVERALL; Nondefinitive Spec/std Data: 1 TYPE AND 316 GRADE; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 18 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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