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)

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