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561.414.1046

SPS-838 Mechanical Seal (PS-838 Cup) – 2-3/4″

PS-205 mechanical seal PS-278 pump seal PS-279

SPS-838 Mechanical Seal (PS-838 Cup) – 2-3/4″

SKU: N/A

Weight 1 lbs
Dimensions 8 × 6 × 4 in
QTY Price
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  • DESCRIPTION

    Single Spring Mechanical Seal SPS-838 | PS-838 cup Equivalent

    SPS-838 single spring mechanical seal, PS-838 / 838 cup equivalent. Fits 2-3/4″ shaft with 3.500″×.625″ seat and Type E/1 rotary head

    Typical applications: Centrifugal pumps, mixers, and other rotating equipment.

    Key specs: Shaft size: 2-3/4″ single spring seal • Seat: 3.500″ x .625″ cup • Rotary OD: 3.520″ • Working length: 2.875″

    Design & construction:
    Rotary head Type E/1. Electro-polished 316 stainless steel metal parts. Elastomeric bellows. Non-directional (independent of shaft rotation).

    Materials available (choose from dropdown)

    • CAR/CER/NIT — Carbon vs. Ceramic faces, Nitrile elastomers

    • CAR/CER/VIT — Carbon vs. Ceramic faces, Viton/FKM elastomers

    • SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton/FKM elastomers

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    SPS Line

    Same Fit. Lasting Reliability.

    Our SPS single-spring seals are like-for-like replacements for industry-standard E/1, D/2, and C/21 heads—delivering the same fit and function with upgraded materials designed for extended service life.

    What sets SPS apart:

    • Heavier elastomer bellows for improved structural integrity and stability under pressure

    • Resin-impregnated, abrasion-resistant carbon faces — double-density carbon designed for enhanced hardness and durability

    • 316/304 stainless steel components for superior corrosion protection across E/1, D/2, and C/21 head styles

    • Precision-finished rotary heads with a brushed appearance for a high-quality machined look and consistent sealing performance

    • Built to exacting standards for dependable performance across a wide range of pump applications

    Engineered to rigorous standards, SPS seals provide a durable, dependable alternative to common aftermarket or OEM options—compare them against your current line and see the difference.

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and  Gaskets.

  • SPECIFICATIONS
    Cross Reference / Alternative Part Numbers

    OEM numbers: 08-210-902-045 , 52114890810 , 52115315805 , 52122588813 , 240290 , PK-0523

    Brands: A-C PUMP (A XYLEM Brand) , MONARCH PUMPS (Division of FRANKLIN ELECTRIC COMPANY, INC.) , NASH (Division of GARDNER DENVER)

    Nameplate Data: None available

    Part number variations

    • SPS-838 / SPS838 / SPS 838
    • PS-838 / PS838 / PS 838
    • 838 seal / 838 mechanical seal / 838 pump seal
    • PS-838 cup / 838 cup seal / PS838 cup

    Size / measurement variations

    • 2-3/4″ mechanical seal / 2.75″ seal / 2 3/4 seal
    • 3.500 × .625 seat / 3.5 × 0.625 / 3-1/2 × 5/8 seat
    • 3.520 rotary OD / 3.520″ OD
    • 2.875 working length / 2-7/8 working length / 2.875″ length

    Style / head type variations

    • E/1 seal / E1 seal / “Type E1 mechanical seal”
    • “single spring E/1 mechanical seal”

    Material searches

    • carbon ceramic nitrile mechanical seal
    • carbon ceramic Viton/FKM mechanical seal
    • silicon carbide mechanical seal (SIC/SIC) Viton/FKM
Disclaimer: Seal House USA provides aftermarket replacement parts. Any OEM names are used strictly for cross-reference. We are an independent supplier.

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