PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-S-1222GNut,plain,hexagon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-112-0308 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-112-0308 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-112-0308. Primary manufacturer part number: MIL-S-1222G.
Features
  • Nut,plain,hexagon — FSC 5310
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • 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 5310-01-112-0308, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-112-0308
Primary Part NumberMIL-S-1222G
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 JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-321-2410 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-038-0375 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-038-5899 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-111-0637 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-111-0639 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-111-0641 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-111-5211 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-147-9425 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-153-0804 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-202-3426 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
MIL-S-1222G Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-1222G 5/8IN 11UNC Naval Inventory Control Point Mechanicsburg (USA)
000.625-11UNC-2B Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5310-00-321-2410INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-038-0375INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-038-5899INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-111-0637INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-111-0639INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-111-0641INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-111-5211INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-147-9425INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-153-0804INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-202-3426INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-202-6169INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-283-2763INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-112-0308?

NSN 5310-01-112-0308 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 5310-01-112-0308?

NSN 5310-01-112-0308 has 3 cross-referenced part numbers: MIL-S-1222G (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-S-1222G 5/8IN 11UNC (Naval Inventory Control Point Mechanicsburg), 000.625-11UNC-2B (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 5310-01-112-0308?

There are 12 known substitutes for 5310-01-112-0308: 5310-00-321-2410, 5310-01-038-0375, 5310-01-038-5899 and 9 more. Verify interchangeability with system specifications before substitution.

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

Key specifications for MIL-S-1222G: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-112-0308 still in active supply?

NSN 5310-01-112-0308 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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