PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25261Nut,self-Locking,hexagon

Tifco Industries, Inc. Dba Tifco Industries Inc · NSN 5310-01-565-2562 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-565-2562 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-565-2562. Primary manufacturer part number: 25261.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Hardness Rating: 32.0 ROCKWELL C MAXIMUM
  • Width Across Flats: 0.375 INCHES NOMINAL IN
  • Material: STEEL OVERALL EXCEPT INSERT
  • Bearing Surface Type: CHAMFERED
  • Nut Height: 0.234 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall Except Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-565-2562, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-565-2562
Primary Part Number25261
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTifco Industries, Inc. Dba Tifco Industries Inc
StatusACTIVE
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Hardness Rating32.0 ROCKWELL C MAXIMUM
Width Across Flats0.375 INCHES NOMINAL IN
MaterialSTEEL OVERALL EXCEPT INSERT
Bearing Surface TypeCHAMFERED
Nut Height0.234 INCHES NOMINAL IN
Nominal Thread Size0.190 INCHES IN
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Temp Rating250.0 FAHRENHEIT MINIMUM DEGF
Thread Quantity Per Inch32
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5133-00-228-1412 INTERCHANGEABLE
Drill,twist
5307-00-514-68345223825 INTERCHANGEABLE
Stud,shouldered
Army, United States Department of the Dba Rock Island Arsenal Jmtc
5310-00-596-7155AA7FA229 INTERCHANGEABLE
Nut,self-Locking,wing
Renk America Llc Div Renk America
3120-00-956-8442 INTERCHANGEABLE
Bearing,sleeve
4710-01-014-390225259 INTERCHANGEABLE
Tube Assembly,metal
Williams International Co., L.l.c.
5331-01-219-399325261 INTERCHANGEABLE
O-Ring
Twg Canada Consolidated Inc
5330-01-289-3175 INTERCHANGEABLE
Retainer,packing
5120-01-675-994825261 INTERCHANGEABLE
Pin,sledge Attachment
Slide Sledge Llc
Cross-Reference Index
Part NumberManufacturer
25261 PRIMARY Tifco Industries, Inc. Dba Tifco Industries Inc (USA)
Related Parts
5133-00-228-1412INTERCHANGEABLE
DRILL,TWIST
5307-00-514-6834INTERCHANGEABLE
STUD,SHOULDERED
5223825
5310-00-596-7155INTERCHANGEABLE
NUT,SELF-LOCKING,WING
AA7FA229
3120-00-956-8442INTERCHANGEABLE
BEARING,SLEEVE
4710-01-014-3902INTERCHANGEABLE
TUBE ASSEMBLY,METAL
25259
5331-01-219-3993INTERCHANGEABLE
O-RING
25261
5330-01-289-3175INTERCHANGEABLE
RETAINER,PACKING
5120-01-675-9948INTERCHANGEABLE
PIN,SLEDGE ATTACHMENT
25261

Frequently Asked Questions

What is NSN 5310-01-565-2562?

NSN 5310-01-565-2562 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 5310-01-565-2562?

NSN 5310-01-565-2562 has 1 cross-referenced part number: 25261 (Tifco Industries, Inc. Dba Tifco Industries Inc).

What NSN replaces 5310-01-565-2562?

There are 8 known substitutes for 5310-01-565-2562: 5133-00-228-1412, 5307-00-514-6834, 5310-00-596-7155 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25261?

Key specifications for 25261: Nut Style: HEXAGON; Thread Direction: RIGHT-HAND; Hardness Rating: 32.0 ROCKWELL C MAXIMUM; Width Across Flats: 0.375 INCHES NOMINAL 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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