PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-STD-1222,TYIII,GR7,STYANut,plain,hexagon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-383-3345 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-383-3345 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-383-3345. Primary manufacturer part number: MIL-STD-1222,TYIII,GR7,STYA.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Quantity Per Inch: 11
  • Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.626 INCHES IN
  • Criticality Code Justification: ZZZW
  • Thread Class: 2B
  • 12 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-383-3345, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-383-3345
Primary Part NumberMIL-STD-1222,TYIII,GR7,STYA
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
Thread Quantity Per Inch11
Departure From Cited DocumentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.626 INCHES IN
Criticality Code JustificationZZZW
Thread Class2B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5310-01-383-3203 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3251 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3321 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3347 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3351 INTERCHANGEABLE
Nut,heavy,hexagon
5310-01-383-3376 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-386-9756 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-386-9797 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
MIL-STD-1222,TYIII,GR7,STYA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
29307NPC15 Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
MIL-DTL-1222L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222,TYIII,GR 7,STYAL1 Naval Inventory Control Point Mechanicsburg (USA)
5131352970LL1 Naval Inventory Control Point Mechanicsburg (USA)
5131352970L Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
29307NPC15L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222TY3GR7,5/811UNC-2B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222TY3GR7,5/811UNC-2BL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-1222,TYIII,GR 7,STYA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-STD-1222,TYIII,GR7,STYAL1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5310-01-383-3203INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3251INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3321INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3347INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3351INTERCHANGEABLE
NUT,HEAVY,HEXAGON
5310-01-383-3376INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-386-9756INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-386-9797INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-383-3345?

NSN 5310-01-383-3345 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 5310-01-383-3345?

NSN 5310-01-383-3345 has 12 cross-referenced part numbers: MIL-STD-1222,TYIII,GR7,STYA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 29307NPC15 (Leslie Controls, Inc. Dba Leslie Controls Inc), MIL-DTL-1222L1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222,TYIII,GR 7,STYAL1 (Naval Inventory Control Point Mechanicsburg), 5131352970LL1 (Naval Inventory Control Point Mechanicsburg) and 7 more.

What NSN replaces 5310-01-383-3345?

There are 8 known substitutes for 5310-01-383-3345: 5310-01-383-3203, 5310-01-383-3251, 5310-01-383-3321 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-STD-1222,TYIII,GR7,STYA?

Key specifications for MIL-STD-1222,TYIII,GR7,STYA: Thread Quantity Per Inch: 11; Part Name Assigned by Controlling Agency: NUT,HEAVY,HEXAGON; Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS; Thread Series: UNIFIED NATIONAL COARSE (UNC). 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-383-3345 still in active supply?

NSN 5310-01-383-3345 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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