PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25304Nut,self-Locking,hexagon

Tifco Industries, Inc. Dba Tifco Industries Inc · NSN 5310-01-565-2564 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-565-2564 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-565-2564. Primary manufacturer part number: 25304.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Material: STEEL OVERALL
  • Nominal Thread Size: 0.375 INCHES IN
  • Nut Style: HEXAGON
  • Thread Quantity Per Inch: 16
  • Bearing Surface Type: CHAMFERED
  • Temp Rating: 450.0 FAHRENHEIT MAXIMUM DEGF
  • Width Across Flats: 0.562 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 5310-01-565-2564, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Tifco Industries, Inc. Dba Tifco Industries Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-565-2564
Primary Part Number25304
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTifco Industries, Inc. Dba Tifco Industries Inc
StatusACTIVE
MaterialSTEEL OVERALL
Nominal Thread Size0.375 INCHES IN
Nut StyleHEXAGON
Thread Quantity Per Inch16
Bearing Surface TypeCHAMFERED
Temp Rating450.0 FAHRENHEIT MAXIMUM DEGF
Width Across Flats0.562 INCHES NOMINAL IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Hardness Rating26.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
Thread DirectionRIGHT-HAND
Nut Height0.328 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-291-464219376 INTERCHANGEABLE
Washer,flat
John Deer Consumer Products Inc
5330-00-567-48782530-4 INTERCHANGEABLE
Gasket
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
Cross-Reference Index
Part NumberManufacturer
25304 PRIMARY Tifco Industries, Inc. Dba Tifco Industries Inc (USA)
Related Parts
5310-00-291-4642INTERCHANGEABLE
WASHER,FLAT
19376
5330-00-567-4878INTERCHANGEABLE
GASKET
2530-4

Frequently Asked Questions

What is NSN 5310-01-565-2564?

NSN 5310-01-565-2564 is a Nut,self-Locking,hexagon, manufactured by Tifco Industries, Inc. Dba Tifco Industries Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-565-2564?

NSN 5310-01-565-2564 has 1 cross-referenced part number: 25304 (Tifco Industries, Inc. Dba Tifco Industries Inc).

What NSN replaces 5310-01-565-2564?

There are 2 known substitutes for 5310-01-565-2564: 5310-00-291-4642, 5330-00-567-4878. Verify interchangeability with system specifications before substitution.

What are the specifications of 25304?

Key specifications for 25304: Special Features: TENSILE STRENGTH 150,000 P.S.I. MINIMUM; Part Name Assigned by Controlling Agency: TIFCO (CLASS C) LOCK NUT; Material: STEEL OVERALL; Nominal Thread Size: 0.375 INCHES IN. 15 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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