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Armstrong Mechanical Seals

  • Armstrong 8B2 1-1/8" OEM Mechanical Seal — # 975002-304

    Armstrong 8B2 1-1/8″ #975002-304

    Armstrong 8B2 1-1/8″ #975002-304

    Item #N/A

    Armstrong 8B2 1-1/8″ OEM Mechanical Seal — #975002-304

    Direct OEM replacement 8B2 seal for Armstrong pumps. Built with SiC/SiC faces, Viton® elastomer, T-25 clamp, and 316SS hardware for reliable performance.

    Content note: We supply this seal in upgraded materials  SiC/SiC/Viton® whereas the OEM standard is Carbon/SiC/Viton for improved heat, abrasion, and reliability

    Variations (choose from drop down menu above)

    • Seal Only — 8B2, 1-1/8″, SiC/SiC/Viton, T-25, 316SS

    • Seal + Bushing — includes Armstrong 1-1/8″ Bushing (425520-002)

    Specs:

    • Size: 1-1/8″

    • Faces: Silicon Carbide / Silicon Carbide (SiC/SiC)

    • Elastomer: Viton® (FKM)

    • Clamp: T-25

    • Metals: 316 Stainless Steel

    • OEM reference: 975002-304

    Fitment & Applications:

    • Series: Armstrong 4300

    • Frames: 143–256 (TC/TCS)
      Always verify seal type/size against your nameplate or existing seal.

    Cross-Reference:

    PS-8006 | MPN: 975002-003 | Alt: VG-975002304 | Nameplate: Series 4300

    What’s included:

    • 1 × 8B2 1-1/8″ mechanical seal assembly

    • (Bushing included only with the Seal + Bushing option)

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gaskets

    Have questions? Call us anytime- we’re here to help 

    View Product
  • Armstrong 8B2 1-5/8"

    Armstrong 8B2 1-5/8″ #975002-334

    Armstrong 8B2 1-5/8″ #975002-334

    Item #N/A

    Armstrong 8B2 1-5/8″ OEM Mechanical Seal — #975002-334

    Direct OEM replacement 8B2 mechanical seal for Armstrong pumps. Built with SiC/SiC faces, Viton® elastomer, T-25 clamp, and 316SS hardware for reliable, long-life performance.

    Content note: We supply this seal in upgraded materials  SiC/SiC/Viton® whereas the OEM standard is Carbon/SiC/Viton for improved heat, abrasion, and reliability

    Variations

    • Seal Only — 8B2, 1-5/8″, SiC/SiC/Viton, T-25, 316SS

    • Seal + Bushing — includes Armstrong 1-5/8″ Bushing (425520-001)

      Image note: The photo shows the bushing, which is included with the seal but displayed separately for clarity

    Specs:

    • Direct OEM replacement: 975002-334

    • 1-5/8″ size, T-25 clamp, 316SS hardware

    • Faces: Silicon Carbide / Silicon Carbide Elastomer: Viton® (FKM)

    Fitment & Applications:

    • Series: Armstrong 4300 Series

    • Frames: 284–326 (TC/TCS)
      Always verify seal type and size against your nameplate or existing seal.

    Cross-Reference:

    • PS-8040 | MPNs: 975000-956, 975002-033 | Alt: VG-975002334

    What’s included:

    • 1 × 8B2 1-5/8″ mechanical seal assembly

    • (Bushing included only with the Seal + Bushing option)

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gaskets

    Have questions? Call us anytime- we’re here to help 

    View Product
  • Armstrong 8b2 2-1/8 seal #975002-374

    Armstrong 8B2 2-1/8″ #975002-374

    Armstrong 8B2 2-1/8″ #975002-374

    Item #N/A

    Armstrong 8B2 2-1/8″ OEM Mechanical Seal — #975002-374

    Precision OEM replacement mechanical seal for Armstrong 8B2 assemblies. Built with Silicon Carbide/ Silicon Carbide/ Viton  for reliable sealing in hot-water and industrial service.

    Content note: We supply this seal in upgraded materials  SiC/SiC/Viton® whereas the OEM standard is Carbon/SiC/Viton for improved heat, abrasion, and reliability

    Variations: (choose from drop down menu above)

    • Seal Only — 8B2, 2-1/8″, SiC/SiC/Viton, T-25, 316SS

    • Seal + Bushing — includes Armstrong 2-1/8″ Bushing (425520-003) 

      Image note: The photo shows the bushing, which is included with the seal but displayed separately for clarity

    Specs:

    • Direct OEM replacement: 975002-374

    • 2-1/8″ size, T-25 clamp, 316SS hardware

    • Faces: Silicon Carbide / Silicon Carbide Elastomer: Viton® (FKM)

    Fitment & applications:

    • Armstrong 4300 Series, Frames 364–449

    • Example: 10×10×15, 125 HP
      (Confirm size/type against your nameplate or old seal)

    Cross-Reference

    • PS-8035 | MPNs: 975000-957, 975002-073 | Alt: VG-975002374

    What is included:

    • 1 × 8B2 2-1/8″ seal (SiC/SiC/Viton, T-25, 316SS)

    • (Bushing included only with the Seal + Bushing option)

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gaskets

    Have questions? Call us anytime- we’re here to help 

    View Product
  • Armstrong 8B2 OEM Seal 975002-394 2-5/8"

    Armstrong 8B2 2-5/8″ #975002-394

    Armstrong 8B2 2-5/8″ #975002-394

    Armstrong 8B2 2-5/8″ OEM Mechanical Seal — #975002-394

    Heavy-duty, OEM-spec 8B2 mechanical seal for large Armstrong assemblies. Built for hot-water and light industrial service with Viton®, Carbon/Silicon Carbide faces, and corrosion-resistant 316SS hardware.

    At a glance:

    • Direct OEM replacement: Armstrong #975002-394

    • Large format: 2-5/8″ 8B2 seal for high-capacity units

    Specs:

    • Seal type: Armstrong 8B2

    • Size: 2-5/8″

    • Face materials: Carbon / Silicon Carbide (CAR/SiC)

    • Elastomer: Viton® (FKM)

    • Clamp: T-25

    • Metal parts: 316SS

    • OEM reference: 975002-394

    Fitment & applications:

    • Series: Armstrong 4300 Series

    • Frames: 404–449

    • Styles: TC / TCZ

    What’s included:

    • 1 × Armstrong-spec 8B2 2-5/8″ mechanical seal assembly (T-25 clamp, 316SS)

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gaskets

    Have questions? Call us anytime- we’re here to help 

    View Product
  • Armstrong 8b2 3/4"

    Armstrong 8B2 3/4″ #8975002-324

    Armstrong 8B2 3/4″ #8975002-324

    Armstrong 8B2 3/4″ OEM Mechanical Seal — #8975002-324

    Precision OEM replacement mechanical seal for Armstrong 8B2 assemblies. Built with Carbon/Silicon Carbide/Viton/PTFE for reliable sealing in hot-water and light industrial service.

    At-a-glance:

    • Direct OEM replacement: Armstrong #8975002-324

    • 3/4″ size: fits shafts calling for a 3/4″ 8B2 seal

    Specs:

    • Seal type: Armstrong 8B2

    • Shaft size: 3/4″

    • Face materials: CAR (Carbon) / SiC (Silicon Carbide)

    • Elastomer: VIT (Viton® / FKM)

    • Secondary components: PTFE

    • OEM reference: 8975002-324

    What’s included:

    • 1 × Armstrong-spec 8B2 mechanical seal (3/4″), complete assembly

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gaskets

    Have questions? Call us anytime- we’re here to help 

    View Product
  • buy ebara EVM / Armstrong VMS 198 12.7MM

    Armstrong VMS Type 198

    Armstrong VMS Type 198

    Item #N/A

    Armstrong Type 198 Mechanical Seal

    OEM-style Type 198 replacement seal for Armstrong pumps—our build uses Silicon Carbide / Silicon Carbide faces for improved heat/abrasion resistance and reliability vs standard Carbon/SiC. Choose your shaft size from the information below.

    At a glance:

    • Seal type: Type 198 ( T-198)

    • Face upgrade: SiC/SiC (both faces)

    • Application: Armstrong VMS/VSC vertical multistage and related models

    • OEM ref (example): #190120-003 (for applicable models)

    Available sizes & compatibility (choose from drop down menu above)

    • ½” (12.7 mm) — Armstrong VMS

    • 16 mm — T-198 16 mm; Armstrong VSC, VMS Series, VMS 1010, VMS 1006

    • 20 mm — T-198 20 mm; Armstrong VMS 10006 / 1804

    • 28 mm — T-198 28 mm; Armstrong VMS 32 / 45 / 65, Series 4700; VMS 32 (1–8 stages)

    What’s included

    • 1 × Type 198 mechanical seal

    Content note: This listing is for the mechanical seal only. The metal assembly (sleeve, set screws) is not included.

    Explore our full line up of OEM seals 

    Looking for more? Shop Pump Repair Kits, Shaft Seals and Gaskets

    Have questions? Call us anytime- we’re here to help 

    View Product

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