PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

29U066Nut,self-Locking,hexagon

Esna, Llc · NSN 5310-00-194-8641 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-194-8641 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-194-8641. Primary manufacturer part number: 29U066.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.375 INCHES IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: WASHER FACED
  • Nut Height: 0.547 INCHES NOMINAL IN
  • Width Across Flats: 0.688 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 16
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 5310-00-194-8641, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Esna, Llc. Government technical data includes 11 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: Active.

Technical Specifications
ParameterValue
NSN5310-00-194-8641
Primary Part Number29U066
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEsna, Llc
StatusACTIVE
Thread DirectionRIGHT-HAND
Nominal Thread Size0.375 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeWASHER FACED
Nut Height0.547 INCHES NOMINAL IN
Width Across Flats0.688 INCHES NOMINAL IN
Thread Quantity Per Inch16
Nut StyleHEXAGON
Surface TreatmentCADMIUM OVERALL
Thread Class2B
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-087-4652 INTERCHANGEABLE
Nut,self-Locking,hexagon
Cross-Reference Index
Part NumberManufacturer
29U066 Harvard Industries Inc (USA)
29U066 PRIMARY Esna, Llc (USA)
Related Parts
5310-00-087-4652INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON

Frequently Asked Questions

What is NSN 5310-00-194-8641?

NSN 5310-00-194-8641 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-194-8641?

NSN 5310-00-194-8641 has 2 cross-referenced part numbers: 29U066 (Harvard Industries Inc), 29U066 (Esna, Llc).

What NSN replaces 5310-00-194-8641?

There is 1 known substitute for 5310-00-194-8641: 5310-00-087-4652. Verify interchangeability with system specifications before substitution.

What are the specifications of 29U066?

Key specifications for 29U066: Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.375 INCHES IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Bearing Surface Type: WASHER FACED. 11 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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