Tools› Hand and Other Tools

SEALED POWER

MSTR W/PRM RNGS W/O PSTNS

$1,782.83

SKU: S03T MK-6393

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Square machine keys transmit torque and prevent relative rotation between a shaft and hub. They are used in gears, sprockets, pulleys, couplings, and other rotating shaft assemblies in industrial power transmission and machinery applications. Low carbon steel provides excellent machinability and weldability for general-purpose power transmission.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSEALED POWER
Part NumberS03T MK-6393

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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