PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

399K49Nut,self-Locking,hexagon

Hyster-Yale Group, Inc. Dba Yale Materials Handling · NSN 5310-00-269-6340 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-269-6340 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-269-6340. Primary manufacturer part number: 399K49.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Locking Feature: PREVAILING TORQUE ALL METAL DESIGN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Bearing Surface Type: CHAMFERED
  • Thread Quantity Per Inch: 10
  • Nominal Thread Size: 0.750 INCHES IN
  • Material: STEEL OVERALL
  • Thread Class: 2B
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 5310-00-269-6340, 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. Dba Yale Materials Handling. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-269-6340
Primary Part Number399K49
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHyster-Yale Group, Inc. Dba Yale Materials Handling
StatusCANCELLED
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Bearing Surface TypeCHAMFERED
Thread Quantity Per Inch10
Nominal Thread Size0.750 INCHES IN
MaterialSTEEL OVERALL
Thread Class2B
Width Across Flats1.125 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Nut Height0.641 INCHES NOMINAL IN
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
3040-00-328-054225210 INTERCHANGEABLE
Lining,friction
Honeywell International Inc. Div Aerospace - Torrance
6930-01-393-83522521-01 INTERCHANGEABLE
Indicator Simulated
Malwin Electronics Corp.
4930-01-544-625125210-1 INTERCHANGEABLE
Reel Assembly,static Discharge
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
Cross-Reference Index
Part NumberManufacturer
4HS872 Oshkosh Defense Llc (USA)
RAILR0ADASR3-4-10 P.g.& E. Corp. (USA)
399K49 PRIMARY Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
ER0009 Pearson Engineering Limited (GBR)
4HS872 Oshkosh Corp (USA)
1K6870 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
252-101 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
0150160-00 PRIMARY Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
Related Parts
3040-00-328-0542INTERCHANGEABLE
LINING,FRICTION
25210
6930-01-393-8352INTERCHANGEABLE
INDICATOR SIMULATED
2521-01
4930-01-544-6251INTERCHANGEABLE
REEL ASSEMBLY,STATIC DISCHARGE
25210-1

Frequently Asked Questions

What is NSN 5310-00-269-6340?

NSN 5310-00-269-6340 is a Nut,self-Locking,hexagon, manufactured by Hyster-Yale Group, Inc. Dba Yale Materials Handling, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-269-6340?

NSN 5310-00-269-6340 has 8 cross-referenced part numbers: 4HS872 (Oshkosh Defense Llc), RAILR0ADASR3-4-10 (P.g.& E. Corp.), 399K49 (Hyster-Yale Group, Inc. Dba Yale Materials Handling), ER0009 (Pearson Engineering Limited), 4HS872 (Oshkosh Corp) and 3 more.

What NSN replaces 5310-00-269-6340?

There are 3 known substitutes for 5310-00-269-6340: 3040-00-328-0542, 6930-01-393-8352, 4930-01-544-6251. Verify interchangeability with system specifications before substitution.

What are the specifications of 399K49?

Key specifications for 399K49: Locking Feature: PREVAILING TORQUE ALL METAL DESIGN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Bearing Surface Type: CHAMFERED; Thread Quantity Per Inch: 10. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-269-6340 still in active supply?

NSN 5310-00-269-6340 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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