PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

278326Nut,self-Locking,hexagon

Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling · NSN 5310-01-100-5205 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-100-5205 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-100-5205. Primary manufacturer part number: 278326.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Bearing Surface Type: CHAMFERED
  • Nominal Thread Size: 0.500 INCHES IN
  • Thread Series: UNF
  • Thread Quantity Per Inch: 20
  • Surface Treatment: CADMIUM OVERALL
  • Material: STEEL OVERALL
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
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 5310-01-100-5205, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling. Government technical data includes 12 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
NSN5310-01-100-5205
Primary Part Number278326
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
StatusACTIVE
Bearing Surface TypeCHAMFERED
Nominal Thread Size0.500 INCHES IN
Thread SeriesUNF
Thread Quantity Per Inch20
Surface TreatmentCADMIUM OVERALL
MaterialSTEEL OVERALL
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Nut StyleHEXAGON
Width Across Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Class2B
Nut Height0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2530-01-148-5046278326N INTERCHANGEABLE
Adjuster,slack,brake
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
Cross-Reference Index
Part NumberManufacturer
278326 Hyster-Yale Group, Inc. (USA)
278326 PRIMARY Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
Related Parts
2530-01-148-5046INTERCHANGEABLE
ADJUSTER,SLACK,BRAKE
278326N

Frequently Asked Questions

What is NSN 5310-01-100-5205?

NSN 5310-01-100-5205 is a Nut,self-Locking,hexagon, manufactured by Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-100-5205?

NSN 5310-01-100-5205 has 2 cross-referenced part numbers: 278326 (Hyster-Yale Group, Inc.), 278326 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling).

What NSN replaces 5310-01-100-5205?

There is 1 known substitute for 5310-01-100-5205: 2530-01-148-5046. Verify interchangeability with system specifications before substitution.

What are the specifications of 278326?

Key specifications for 278326: Bearing Surface Type: CHAMFERED; Nominal Thread Size: 0.500 INCHES IN; Thread Series: UNF; Thread Quantity Per Inch: 20. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com