Parts/Accessories

Armstrong 10k011603
Armstrong 10k011603
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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Material
Stainless Steel

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Armstrong Bushing 1-1/8″ #425520-002
Armstrong Bushing 1-1/8″ #425520-002
Armstrong Bushing 1-1/8″ — #425520-002

OEM 1-1/8″ bushing for Armstrong pumps. Designed to pair with the 8B2 1-1/8″ mechanical seal #975002-304 for proper shaft/seal fit.

At a glance:
- OEM part: Armstrong 425520-002
- Size: 1-1/8″
- Use with seal: #975002-304 (8B2, 1-1/8″)
- For Armstrong models/series listed below
Need the matching seal as well?
We supply the Armstrong 8B2 1-1/8″ Mechanical Seal (#975002-304) — order here: Armstrong 8B2 1-1/8″ (#975002-304)

What’s included:
- 1 × Armstrong 1-1/8″ bushing (425520-002)
Cross-Reference / Compatibility

Armstrong 4300 Series
- Groups 1–2 — use with seal #975002-304
- S Group 1–4 (TC motors) — use with seal #975002-304
Armstrong 4302 & 4312
- Use with seal #975002-304
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Armstrong Bushing 1-5/8″ #425520-001
Armstrong Bushing 1-5/8″ #425520-001
Armstrong Bushing 1-5/8″ — #425520-001

OEM 1-5/8″ bushing for Armstrong pumps. Designed to pair with the 8B2 1-5/8″ mechanical seal #975002-334 for proper shaft/seal fit.

At a glance:
- OEM part: Armstrong 425520-001
- Size: 1-5/8″
- Use with seal: #975002-334 (8B2, 1-5/8″)
- For Armstrong models/series listed below
Need the matching seal as well?
We supply the Armstrong 8B2 1-5/8″ Mechanical Seal (#975002-334) — order here: Armstrong 8B2 1-5/8″ (#975002-334)

What’s included:
- 1 × Armstrong 1-5/8″ bushing (425520-001)
Cross-Reference / Compatibility

Armstrong 4300 Series
- Groups 3–5 — use with seal #975002-334
- M Group 5–20 (TC motors) — use with seal #975002-334
Armstrong 4302 & 4312
- Use with seal #975002-334
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Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals

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ARMSTRONG BUSHING 2-1/8″ #425520-003
ARMSTRONG BUSHING 2-1/8″ #425520-003
Armstrong Bushing 2-1/8″ — #425520-003

OEM 2-1/8″ bushing for Armstrong 4300 Series pumps. Designed to pair with the 8B2 2-1/8″ mechanical seal #975002-374 for proper shaft/seal fit.

At a glance:
- OEM part: Armstrong 425520-003
- Size: 2-1/8″
- Use with seal: #975002-374 (8B2, 2-1/8″)
- For Armstrong 4300 Series pump groups listed below
Need the matching seal as well?
We supply the Armstrong 8B2 2-1/8″ Mechanical Seal (#975002-374) — order here: Armstrong 8B2 2-1/8″

What’s included:
- 1 × Armstrong 2-1/8″ bushing (425520-003)
Cross-Reference / Compatibility

Armstrong 4300 Series
- Groups 25–51 (TC/TSC motors) — use with seal #975002-374
- Groups 6 & 7 — use with seal #975002-374
- L Group 21–24 (TC/TSC/TCZ motors) — use with seal #975002-374
Explore our full line up of Parts & Accessories

Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals

Have questions? Call us anytime-we’re here to help
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Berkeley 19310 Shaft Sleeve
Berkeley 19310 Shaft Sleeve
Berkeley Shaft Sleeve — 19310 ( Slip-Fit)

Stainless steel slip-fit shaft sleeve for Berkeley pumps, designed to protect the shaft and provide a smooth, replaceable sealing surface. The sleeve features a chamfered lead-in for easy installation and an S11207 grooved outer dimension for positive O-ring retention. Intended for use with the 185 mechanical seal and SO-5126 gasket.

What’s included:
- 19310 stainless shaft sleeve, o-ring, snap ring
Specs:
- Fit: Slip-fit
- Material: Stainless steel
- Dimensions: 1.00″ ID × 1.25″ OD × 2.25″ length
- Features: Chamfered end, S11207 grooved outer diameter
- Mates with: 185 mechanical seal, SO-5126 gasket
Why choose this sleeve
- Protects the shaft—sleeve takes wear, not the shaft
- Grooved OD + O-ring for reliable sealing
- Chamfered end speeds installation and reduces damage risk
Ordering tip: Verify ID/OD/length and your seal/gasket pairing (185 & SO-5126) against your pump’s parts list or nameplate. Need help confirming fit? Contact us and we’ll double-check your application.

Explore our full line up of Parts & Accessories

Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals
Material
Stainless Steel

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Bronze Shaft Sleeve
Bronze Shaft Sleeve

Item #N/A
Bronze Shaft Sleeve — Straight (No Features)

Precision-machined bronze shaft sleeve for centrifugal pumps. Designed to protect the pump shaft from wear and provide a smooth, reliable sealing surface for either mechanical seals or packing.

At a glance: Bronze • Straight sleeve (no shoulders, keyways, or threads) • Precision finish for seal/packing contact

Uses

Extends shaft life by taking the wear instead of the shaft

Provides a consistent sealing surface for mechanical seals or compression packing

How to order

Choose your size from the dropdown: ID × OD × Length

Need a size you don’t see or a special feature (shoulder, step, thread, keyway)? Contact us—we can help source or machine to spec.
Material
Bronze

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Goulds 4k66
Goulds 4k66
Goulds Shaft Sleeve — 4K66

Precision-machined 316 stainless steel shaft sleeve for Goulds 3656 and 3756 centrifugal pumps. Installs over the pump shaft to provide a corrosion-resistant, replaceable sealing surface and protect the shaft in mechanical seal applications.

Compatibility: Goulds 3656 and 3756 pump series (verify against your BOM/nameplate).

Specifications: 1.000″ ID × 1.250″ OD × 1.500″ length

At a glance:
- Part/Ref.: 4K66
- Material: 316 stainless steel
- Use: Shaft protection + seal-ready surface (mechanical seal duty)
Why choose this sleeve:
- Corrosion resistance of 316 SS in chlorinated and industrial environments
- Protects the shaft—the sleeve takes wear instead of the shaft
- Smooth sealing surface for reliable mechanical seal performance
Ordering tip: Confirm ID, OD, length, and your pump model before purchase. Not sure it matches your build? Contact us—we’ll confirm fitment.

Explore our full line up of Parts & Accessories

Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals

Have questions? Call us anytime- we can help fit the right part to your application
Material
Stainless Steel

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Griswold Shaft Sleeve
Griswold Shaft Sleeve
Griswold Shaft Sleeve — (Bronze)
Precision-machined bronze shaft sleeve for Griswold pumps. Protects the pump shaft from wear and corrosion while providing a smooth, seal-ready surface—extending the service life of both the shaft and the mechanical seal. Ideal for marine, chemical, and general industrial duty.

At a glance:

Part / Ref.: 8287211

Material: Bronze

Dimensions: 1.00″ ID × 1.24″ OD × 2.40″ length

Includes: 022 O-ring

Use: Shaft protection + optimized sealing surface (mechanical seal applications)

Why this sleeve:

Extends shaft life—the sleeve takes the wear, not the shaft

Corrosion-resistant bronze for harsh environments

Precision finish for reliable seal performance and easier installs

Ordering tip: Verify ID, OD, length, and your pump’s parts list/BOM before purchase. Not sure it’s the right sleeve? Contact us and we’ll confirm fitment for your exact Griswold model.
Explore our full line up of Parts & Accessories

Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals

Have questions? Call us anytime- we can help fit the right part to your application
Material
Bronze

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Paco Shaft Sleeve
Paco Shaft Sleeve
Paco Shaft Sleeve — Bronze

Precision-machined bronze shaft sleeve for Paco centrifugal pumps. Fits over the shaft in the seal area to provide a secure, seal-ready surface and protect the shaft from wear and corrosion in mechanical seal applications.

Specifications: 1.00″ ID × 1.25″ OD × 2.38″ length

At a glance:
- Material: Bronze
- Use: Shaft protection + sealing surface (mechanical seal duty)
- Compatibility: Paco centrifugal pump assemblies
Why choose this sleeve:
- Extends shaft life—the sleeve takes the wear, not the shaft
- Smooth, precise finish for reliable mechanical seal performance
Ordering tip: Confirm ID/OD/length with your pump parts list before purchase. Not sure it’s the right sleeve? Contact us and we’ll confirm fitment.

Explore our full line up of Parts & Accessories

Looking for more? Shop Pump Repair kits, Gaskets, OEM seals, & Shaft Seals

Have questions? Call us anytime- we can help fit the right part to your application
Material
Bronze

View Product

Armstrong 10k011603

Armstrong 10k011603

Armstrong Shaft Sleeve — 10K011603 (Keyway + Threaded)

At a glance:

Why choose this sleeve:

Armstrong Bushing 1-1/8″ #425520-002

Armstrong Bushing 1-1/8″ #425520-002

Armstrong Bushing 1-1/8″ — #425520-002

Armstrong Bushing 1-5/8″ #425520-001

Armstrong Bushing 1-5/8″ #425520-001

Armstrong Bushing 1-5/8″ — #425520-001

ARMSTRONG BUSHING 2-1/8″ #425520-003

ARMSTRONG BUSHING 2-1/8″ #425520-003

Armstrong Bushing 2-1/8″ — #425520-003

Berkeley 19310 Shaft Sleeve

Berkeley 19310 Shaft Sleeve

Berkeley Shaft Sleeve — 19310 ( Slip-Fit)

What’s included:

Specs:

Why choose this sleeve

Bronze Shaft Sleeve

Bronze Shaft Sleeve

Bronze Shaft Sleeve — Straight (No Features)

Goulds 4k66

Goulds 4k66

Goulds Shaft Sleeve — 4K66

At a glance:

Why choose this sleeve:

Griswold Shaft Sleeve

Griswold Shaft Sleeve

Griswold Shaft Sleeve — (Bronze)

At a glance:

Why this sleeve:

Paco Shaft Sleeve

Paco Shaft Sleeve

Paco Shaft Sleeve — Bronze

At a glance:

Why choose this sleeve: