Armstrong Shaft Sleeve — 10K011603 (Keyway + Threaded)

Precision-machined stainless steel shaft sleeve for Armstrong 4030 and 4280 end-suction pumps. Designed to fit over the shaft in the seal/packing area, it provides a corrosion-resistant, replaceable sealing surface to protect the shaft and improve service life in high-temperature, high-flow systems.

At a glance:

• Part/Ref.: 10K011603

• Material: Stainless steel

• Features: Keyway and threaded end

• Function: Shaft protection + seal-ready surface (mechanical seal or packing)

Compatibility: Armstrong 4030 and 4280 pump families (verify against your pump BOM/nameplate).

Specifications: 0.75″ ID × 0.625″ OD × 3.96″ length

Why choose this sleeve:

• Protects the shaft—sleeve takes the wear, not the shaft

• Seal-ready finish for consistent sealing performance

• Corrosion-resistant stainless construction for demanding duty

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