PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

443339Nut,self-Locking,hexagon

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 5310-00-044-3339 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-044-3339 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-044-3339. Primary manufacturer part number: 443339.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Nut Style: HEXAGON
  • Nominal Thread Size: 0.500 INCHES IN
  • Thread Quantity Per Inch: 13
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: CHAMFERED
  • Nut Height: 0.438 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-044-3339, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-044-3339
Primary Part Number443339
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusCANCELLED
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Nut StyleHEXAGON
Nominal Thread Size0.500 INCHES IN
Thread Quantity Per Inch13
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeCHAMFERED
Nut Height0.438 INCHES NOMINAL IN
Thread Class2B
Material Document and ClassificationQQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Width Across Flats0.750 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Surface TreatmentCADMIUM OR ZINC OVERALL
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5310-00-225-6993 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
443339 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
4D1099 Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5310-00-225-6993INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-044-3339?

NSN 5310-00-044-3339 is a Nut,self-Locking,hexagon, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-044-3339?

NSN 5310-00-044-3339 has 2 cross-referenced part numbers: 443339 (U S Army Tank Automotive Command Amsta-Im-Mm), 4D1099 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5310-00-044-3339?

There is 1 known substitute for 5310-00-044-3339: 5310-00-225-6993. Verify interchangeability with system specifications before substitution.

What are the specifications of 443339?

Key specifications for 443339: Locking Feature: PREVAILING TORQUE ALL METAL DESIGN; Nut Style: HEXAGON; Nominal Thread Size: 0.500 INCHES IN; Thread Quantity Per Inch: 13. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-044-3339 still in active supply?

NSN 5310-00-044-3339 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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