PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-1222Nut,plain,hexagon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-143-1552 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-143-1552 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-143-1552. Primary manufacturer part number: MIL-DTL-1222.
Features
  • Nut,plain,hexagon — FSC 5310
  • Criticality Code Justification: ZZZX
  • Departure From Cited Designator: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
  • 3 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-143-1552, is classified within Federal Supply Class 5310 (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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-143-1552
Primary Part NumberMIL-DTL-1222
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Criticality Code JustificationZZZX
Departure From Cited DesignatorQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5310-00-145-200222600N PIECE 38 INTERCHANGEABLE
Nut,plain,hexagon
Leslie Controls, Inc. Dba Leslie Controls Inc
5310-00-458-0465 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-041-2866 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-045-1608 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3376 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222,TYIII,GR 4,STY A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222,TYIII,GR 4,STYAL1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5310-00-145-2002INTERCHANGEABLE
NUT,PLAIN,HEXAGON
22600N PIECE 38
5310-00-458-0465INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-041-2866INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-045-1608INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3376INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-143-1552?

NSN 5310-01-143-1552 is a Nut,plain,hexagon, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-143-1552?

NSN 5310-01-143-1552 has 3 cross-referenced part numbers: MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222,TYIII,GR 4,STY A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222,TYIII,GR 4,STYAL1 (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 5310-01-143-1552?

There are 5 known substitutes for 5310-01-143-1552: 5310-00-145-2002, 5310-00-458-0465, 5310-01-041-2866 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-1222?

Key specifications for MIL-DTL-1222: Criticality Code Justification: ZZZX; Departure From Cited Designator: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-143-1552 still in active supply?

NSN 5310-01-143-1552 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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