PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

120225Washer,flat

Bei Sensors & Systems Company, Inc. Dba Bei Duncan · NSN 5310-01-226-0829 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-226-0829 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-226-0829. Primary manufacturer part number: 120225.
Features
  • Washer,flat — FSC 5310
  • Surface Finish: 63.0 MICROINCHES ALL SURFACES
  • Overall Diameter: 0.506 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
  • Material: STEEL COMP 416 OVERALL
  • Hole Diameter: 0.0940 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 416 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-226-0829, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bei Sensors & Systems Company, Inc. Dba Bei Duncan. Government technical data includes 9 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-226-0829
Primary Part Number120225
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBei Sensors & Systems Company, Inc. Dba Bei Duncan
StatusACTIVE
Surface Finish63.0 MICROINCHES ALL SURFACES
Overall Diameter0.506 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
MaterialSTEEL COMP 416 OVERALL
Hole Diameter0.0940 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Material Document and ClassificationQQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5306-00-012-0225120225 INTERCHANGEABLE
Bolt,machine
General Motors Corp
5306-00-207-3307 INTERCHANGEABLE
Bolt,machine
2805-01-104-678512-225 INTERCHANGEABLE
Flywheel,engine
Thermo King Corporation Dba Phoenix Global Distirbution.
5305-01-483-4778120-225V08-08 INTERCHANGEABLE
Screw,close Tolerance
Bell Textron Inc
5305-01-524-1544120-225C3-12 INTERCHANGEABLE
Screw,close Tolerance
Bell Textron Inc
5305-01-568-4423120-225C3R10 INTERCHANGEABLE
Screw,close Tolerance
Bell Textron Inc
5305-01-697-4283120-225C08T10P INTERCHANGEABLE
Screw,machine
Bell Textron Inc
5305-01-697-4314120-225V3T13 INTERCHANGEABLE
Screw,machine
Bell Textron Inc
5305-01-700-5152120-225-3T14 INTERCHANGEABLE
Screw,assembled Washer
Bell Textron Inc
5305-01-718-1962120-225C08T12P INTERCHANGEABLE
Screw,close Tolerance
Bell Textron Inc
Cross-Reference Index
Part NumberManufacturer
120225 Bei Sensors & Systems Company, Inc. Dba Bei Duncan (USA)
120225 Bei Sensors & Systems Co. Inc Dba Edcliff Instruments Division (USA)
Related Parts
5306-00-012-0225INTERCHANGEABLE
BOLT,MACHINE
120225
5306-00-207-3307INTERCHANGEABLE
BOLT,MACHINE
2805-01-104-6785INTERCHANGEABLE
FLYWHEEL,ENGINE
12-225
5305-01-483-4778INTERCHANGEABLE
SCREW,CLOSE TOLERANCE
120-225V08-08
5305-01-524-1544INTERCHANGEABLE
SCREW,CLOSE TOLERANCE
120-225C3-12
5305-01-568-4423INTERCHANGEABLE
SCREW,CLOSE TOLERANCE
120-225C3R10
5305-01-697-4283INTERCHANGEABLE
SCREW,MACHINE
120-225C08T10P
5305-01-697-4314INTERCHANGEABLE
SCREW,MACHINE
120-225V3T13
5305-01-700-5152INTERCHANGEABLE
SCREW,ASSEMBLED WASHER
120-225-3T14
5305-01-718-1962INTERCHANGEABLE
SCREW,CLOSE TOLERANCE
120-225C08T12P

Frequently Asked Questions

What is NSN 5310-01-226-0829?

NSN 5310-01-226-0829 is a Washer,flat, manufactured by Bei Sensors & Systems Company, Inc. Dba Bei Duncan, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-226-0829?

NSN 5310-01-226-0829 has 2 cross-referenced part numbers: 120225 (Bei Sensors & Systems Company, Inc. Dba Bei Duncan), 120225 (Bei Sensors & Systems Co. Inc Dba Edcliff Instruments Division).

What NSN replaces 5310-01-226-0829?

There are 10 known substitutes for 5310-01-226-0829: 5306-00-012-0225, 5306-00-207-3307, 2805-01-104-6785 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 120225?

Key specifications for 120225: Surface Finish: 63.0 MICROINCHES ALL SURFACES; Overall Diameter: 0.506 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Material: STEEL COMP 416 OVERALL; Hole Diameter: 0.0940 INCHES MINIMUM AND 0.0945 INCHES MAXIMUM IN. 9 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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