PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-1222, TYPE IIINut,plain,hexagon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-386-9797 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-386-9797 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-386-9797. Primary manufacturer part number: MIL-DTL-1222, TYPE III.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
  • Criticality Code Justification: ZZZW
  • Thread Quantity Per Inch: 8
  • Thread Class: 2B
  • Nominal Thread Size: 1.250 INCHES IN
  • 11 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 5310-01-386-9797, 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 11 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: Active.

Technical Specifications
ParameterValue
NSN5310-01-386-9797
Primary Part NumberMIL-DTL-1222, TYPE III
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
StatusACTIVE
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Departure From Cited DocumentMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Criticality Code JustificationZZZW
Thread Quantity Per Inch8
Thread Class2B
Nominal Thread Size1.250 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-935-1255 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-207-4732 INTERCHANGEABLE
Nut,plain,hexagon
5307-01-266-6273 INTERCHANGEABLE
Stud,continuous Thread
5310-01-347-4302 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-377-6272 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3203 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3251 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3321 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3345 INTERCHANGEABLE
Nut,plain,hexagon
5310-01-383-3347 INTERCHANGEABLE
Nut,plain,hexagon
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-1222, TYPE III Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ASTM-A194 GRADE 7L1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222,TYIII,GR7,STYAL1 Naval Inventory Control Point Mechanicsburg (USA)
MIL-DTL-1222, TYPE IIIL1 Naval Inventory Control Point Mechanicsburg (USA)
1 1/4-8UN-2BL1 Naval Inventory Control Point Mechanicsburg (USA)
1 1/4-8UN-2B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ASTM-A194 GRADE 7 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
TYIII,GR7,STYA 11/4 8UN-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-DTL-1222L1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5310-00-935-1255INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-207-4732INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5307-01-266-6273INTERCHANGEABLE
STUD,CONTINUOUS THREAD
5310-01-347-4302INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-377-6272INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3203INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3251INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3321INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3345INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3347INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-01-383-3351INTERCHANGEABLE
NUT,HEAVY,HEXAGON
5310-01-383-3376INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5310-01-386-9797?

NSN 5310-01-386-9797 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: active.

What are the part numbers for NSN 5310-01-386-9797?

NSN 5310-01-386-9797 has 11 cross-referenced part numbers: MIL-DTL-1222, TYPE III (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ASTM-A194 GRADE 7L1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222,TYIII,GR7,STYAL1 (Naval Inventory Control Point Mechanicsburg), MIL-DTL-1222, TYPE IIIL1 (Naval Inventory Control Point Mechanicsburg), 1 1/4-8UN-2BL1 (Naval Inventory Control Point Mechanicsburg) and 6 more.

What NSN replaces 5310-01-386-9797?

There are 12 known substitutes for 5310-01-386-9797: 5310-00-935-1255, 5310-01-207-4732, 5307-01-266-6273 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-1222, TYPE III?

Key specifications for MIL-DTL-1222, TYPE III: Thread Series: UNIFIED NATIONAL COARSE (UNC); Departure From Cited Document: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS; Criticality Code Justification: ZZZW; Thread Quantity Per Inch: 8. 6 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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