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Description
9321 630 0140 – STIHL Spring Lock Washer (Genuine STIHL OEM Lock Washer)
The STIHL 9321 630 0140 Spring Lock Washer is a genuine OEM replacement fastener designed for compatible STIHL chainsaws, trimmers, brushcutters, blowers, hedge trimmers, cut-off machines, and other outdoor power equipment. Engineered to STIHL's exact manufacturing specifications, this split lock washer helps prevent bolts and nuts from loosening due to engine vibration while maintaining secure clamping force in critical assemblies.
Manufactured from hardened spring steel with a corrosion-resistant finish, the 9321 630 0140 Lock Washer is designed to provide reliable locking action under heavy-duty operating conditions. Using a genuine STIHL OEM lock washer helps maintain factory assembly integrity and extends the service life of connected components.
Product Details
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Part Number: 9321 630 0140
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Brand: STIHL
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Part Type: Spring Lock Washer
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Function: Prevents fasteners from loosening due to vibration
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Material: Hardened Spring Steel
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Finish: Corrosion-Resistant Zinc-Plated Coating
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Installation: Direct OEM Replacement
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OEM Status: Genuine STIHL OEM Part
Key Features
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Genuine STIHL OEM spring lock washer
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Split lock design provides secure fastening
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Hardened spring steel construction
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Corrosion-resistant zinc-plated finish
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Helps resist vibration-induced loosening
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Precision-manufactured for factory fit
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Long service life
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Direct replacement with no modifications required
Function
The 9321 630 0140 Spring Lock Washer is installed beneath a bolt head or nut to maintain constant spring tension after tightening. Its split helical design increases resistance to loosening caused by engine vibration, shock loads, and repeated operation.
Compatible STIHL Equipment
The STIHL 9321 630 0140 Spring Lock Washer is used on a wide variety of STIHL outdoor power equipment utilizing OEM part number 9321 630 0140, including selected:
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STIHL Chainsaws
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STIHL Brushcutters
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STIHL String Trimmers
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STIHL Hedge Trimmers
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STIHL Blowers
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STIHL Cut-Off Machines
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STIHL KombiSystem Powerheads
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Additional STIHL equipment specifying OEM part number 9321 630 0140
Always verify your equipment model, serial number, illustrated parts diagram, and original OEM part number before ordering to ensure proper compatibility.
Who Is This For?
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Professional arborists
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Landscapers
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Forestry professionals
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Outdoor power equipment technicians
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Equipment repair shops
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STIHL equipment owners
Recommended Applications
Ideal for:
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Engine assembly
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Housing installation
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Clutch and drive system repairs
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Equipment restoration
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Preventive maintenance
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OEM hardware replacement
Pros
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Genuine STIHL OEM quality
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Strong spring locking action
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Hardened steel construction
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Corrosion-resistant finish
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Excellent vibration resistance
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Precision factory fit
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Long service life
Cons
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Compatible only with applications requiring OEM part number 9321 630 0140
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Should be replaced if flattened, cracked, or excessively corroded
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Fasteners should always be tightened to STIHL's recommended torque specifications
Comparison – STIHL 9321 630 0140 OEM Spring Lock Washer vs Standard Flat Washers
STIHL 9321 630 0140 Spring Lock Washer
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Split helical locking design
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Helps prevent fastener loosening
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Maintains clamping force under vibration
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Hardened spring steel construction
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Designed specifically for STIHL equipment
Standard Flat Washers
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Distribute clamping load only
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Do not provide locking action
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Less effective in high-vibration applications
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Primarily used for load distribution
Why Buy from Barry's Power Equipment?
Barry's Power Equipment is an authorized STIHL dealer supplying genuine OEM replacement parts trusted by professional arborists, landscapers, contractors, and outdoor power equipment technicians.
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Genuine STIHL OEM replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert technical support
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Extensive inventory for STIHL, Scag, Wright, Toro, Exmark, Ariens, Gravely, Ferris, Kawasaki, Kohler, Honda, Briggs & Stratton, Cub Cadet, and John Deere equipment.
