PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3449-8Washer,lock

Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled · NSN 5310-00-186-6225 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-186-6225 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-186-6225. Primary manufacturer part number: 3449-8.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL OVERALL
  • Outside Diameter: 0.296 INCHES NOMINAL IN
  • Hole Diameter: 0.168 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material Thickness: 0.040 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OVERALL
  • 2 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-186-6225, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 6 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-186-6225
Primary Part Number3449-8
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMicrosemi Corp. - High Performance Timing Dba Vectron International- Cancelled
StatusCANCELLED
MaterialSTEEL OVERALL
Outside Diameter0.296 INCHES NOMINAL IN
Hole Diameter0.168 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Material Thickness0.040 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3110-00-554-3232204S INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5940-00-665-5764699408PT3 INTERCHANGEABLE
Terminal,stud
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-791-805723E11 INTERCHANGEABLE
Washer,lock
Dana Off Highway Products, Llc
5998-01-003-929034498 INTERCHANGEABLE
Circuit Card Assembly
Emcore Corporation Div Concord Division
Cross-Reference Index
Part NumberManufacturer
3449-8 Oak Crystal Inc (USA)
3449-8 PRIMARY Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA)
Related Parts
3110-00-554-3232INTERCHANGEABLE
BEARING,BALL,ANNULAR
204S
5940-00-665-5764INTERCHANGEABLE
TERMINAL,STUD
699408PT3
5310-00-791-8057INTERCHANGEABLE
WASHER,LOCK
23E11
5998-01-003-9290INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
34498

Frequently Asked Questions

What is NSN 5310-00-186-6225?

NSN 5310-00-186-6225 is a Washer,lock, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-186-6225?

NSN 5310-00-186-6225 has 2 cross-referenced part numbers: 3449-8 (Oak Crystal Inc), 3449-8 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).

What NSN replaces 5310-00-186-6225?

There are 4 known substitutes for 5310-00-186-6225: 3110-00-554-3232, 5940-00-665-5764, 5310-00-791-8057 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3449-8?

Key specifications for 3449-8: Material: STEEL OVERALL; Outside Diameter: 0.296 INCHES NOMINAL IN; Hole Diameter: 0.168 INCHES NOMINAL IN; Style Designator: SPLIT HELICAL-RIGHT HAND. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-186-6225 still in active supply?

NSN 5310-00-186-6225 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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