PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25201Nut,plain,hexagon

Helicopter Parts Service Inc · NSN 5310-00-533-3892 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-533-3892 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-533-3892. Primary manufacturer part number: 25201.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Class: 3B
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Type and Quantity: 2 DRILLED
  • Width Across Flats: 1.296 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.875 INCHES IN
  • Thread Series: UNF
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-533-3892, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Helicopter Parts Service Inc. Government technical data includes 15 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-533-3892
Primary Part Number25201
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHelicopter Parts Service Inc
StatusACTIVE
Thread Class3B
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Hole Type and Quantity2 DRILLED
Width Across Flats1.296 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
Nominal Thread Size0.875 INCHES IN
Thread SeriesUNF
Thread Quantity Per Inch14
Hole Configuration StyleCONFIGURATION C
Bearing Surface TypeCHAMFERED
Nut Height0.250 INCHES NOMINAL IN
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Drilled Hole Diameter0.069 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5133-00-228-1378 INTERCHANGEABLE
Drill,twist
4210-00-808-4544 INTERCHANGEABLE
Extinguisher,fire
2530-00-854-149625201 INTERCHANGEABLE
Deflector,dirt and Liquid
Allianz Sweeper Company
6510-01-481-4419 INTERCHANGEABLE
Bandage,cast,impregnated
5340-01-538-4663 INTERCHANGEABLE
Plate,mounting
8105-01-685-7815252-01 INTERCHANGEABLE
Bag,plastic
Skc Inc
Cross-Reference Index
Part NumberManufacturer
25201 Helicopter Parts Service Inc (USA)
25201 Hiller Aircraft Corporation (USA)
Related Parts
5133-00-228-1378INTERCHANGEABLE
DRILL,TWIST
4210-00-808-4544INTERCHANGEABLE
EXTINGUISHER,FIRE
2530-00-854-1496INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
25201
6510-01-481-4419INTERCHANGEABLE
BANDAGE,CAST,IMPREGNATED
5340-01-538-4663INTERCHANGEABLE
PLATE,MOUNTING
8105-01-685-7815INTERCHANGEABLE
BAG,PLASTIC
252-01

Frequently Asked Questions

What is NSN 5310-00-533-3892?

NSN 5310-00-533-3892 is a Nut,plain,hexagon, manufactured by Helicopter Parts Service Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-533-3892?

NSN 5310-00-533-3892 has 2 cross-referenced part numbers: 25201 (Helicopter Parts Service Inc), 25201 (Hiller Aircraft Corporation).

What NSN replaces 5310-00-533-3892?

There are 6 known substitutes for 5310-00-533-3892: 5133-00-228-1378, 4210-00-808-4544, 2530-00-854-1496 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25201?

Key specifications for 25201: Thread Class: 3B; Surface Treatment: CADMIUM AND CHROMATE OVERALL; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Hole Type and Quantity: 2 DRILLED. 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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