PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52E126Nut,self-Locking,hexagon

Harvard Industries Inc · NSN 5310-00-497-3894 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-497-3894 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-497-3894. Primary manufacturer part number: 52E126.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Quantity Per Inch: 16
  • Thread Series: UNF
  • Nominal Thread Size: 0.750 INCHES IN
  • Surface Treatment: CADMIUM OR ZINC NUT
  • Thread Direction: RIGHT-HAND
  • Width Across Flats: 1.063 INCHES NOMINAL IN
  • Nut Height: 0.875 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Nut construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-497-3894, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Harvard Industries Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-497-3894
Primary Part Number52E126
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHarvard Industries Inc
StatusCANCELLED
Thread Quantity Per Inch16
Thread SeriesUNF
Nominal Thread Size0.750 INCHES IN
Surface TreatmentCADMIUM OR ZINC NUT
Thread DirectionRIGHT-HAND
Width Across Flats1.063 INCHES NOMINAL IN
Nut Height0.875 INCHES NOMINAL IN
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
MaterialSTEEL NUT
Thread Class3B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5310-00-262-6383734678PC10 INTERCHANGEABLE
Nut,self-Locking,hexagon
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
2805-00-271-954358010A INTERCHANGEABLE
Valve,poppet,engine
Brinkley Technology Group Llc Dba Hercules Manufacturing
5962-00-321-7972SMA731262 INTERCHANGEABLE
Amplifier
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3020-00-517-23648-6PC77 INTERCHANGEABLE
Gear,worm
The Dewey Electronics Corporation Div Pitometer Log Division
Cross-Reference Index
Part NumberManufacturer
52E126 Harvard Industries Inc (USA)
AN365-1216A Aeronautical Standards Group Dept of Navy and Air Force (USA)
MS20365-1216A Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
52E126 Esna, Llc (USA)
S907 Bae Systems Land & Armaments L.p. (USA)
Related Parts
5310-00-262-6383INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
734678PC10
2805-00-271-9543INTERCHANGEABLE
VALVE,POPPET,ENGINE
58010A
5962-00-321-7972INTERCHANGEABLE
AMPLIFIER
SMA731262
3020-00-517-2364INTERCHANGEABLE
GEAR,WORM
8-6PC77

Frequently Asked Questions

What is NSN 5310-00-497-3894?

NSN 5310-00-497-3894 is a Nut,self-Locking,hexagon, manufactured by Harvard Industries Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-497-3894?

NSN 5310-00-497-3894 has 5 cross-referenced part numbers: 52E126 (Harvard Industries Inc), AN365-1216A (Aeronautical Standards Group Dept of Navy and Air Force), MS20365-1216A (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 52E126 (Esna, Llc), S907 (Bae Systems Land & Armaments L.p.).

What NSN replaces 5310-00-497-3894?

There are 4 known substitutes for 5310-00-497-3894: 5310-00-262-6383, 2805-00-271-9543, 5962-00-321-7972 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 52E126?

Key specifications for 52E126: Thread Quantity Per Inch: 16; Thread Series: UNF; Nominal Thread Size: 0.750 INCHES IN; Surface Treatment: CADMIUM OR ZINC NUT. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-497-3894 still in active supply?

NSN 5310-00-497-3894 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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