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All Single Spring Seals

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    514c

    514c

    Item #N/A

    Single Spring Mechanical Seal 514C – Equal to industry standard number 514 / PS-514

    Tapered spring for wide base to fit over impeller hub or other similar feature

    1-5/8″ Single spring mechanical seal with 2.37″ x .500″ cup seat, 2.185″ rotary OD, 1.375″ working length

    Crimped rotary head type N-33, equivalent to Pac-Seal T-21 (tapered spring) and Burgmann MG9, can replace seal type D & 2 type seal heads.

    Electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
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    516

    516

    Equal to industry standard 516 / PS-516 mechanical seal

    Mechanical seal Type 166, T-16;  5/8” shaft size with 1.25″ x .406″ cup seat machined carbon/cermic/buna

    For Upgrades/variations: 200 (basic), 3867 (premium & viton), 200cv (molded carbon), 200cvss (silicon/silicon/viton)

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
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    523c

    523c

    Item #N/A

    Single Spring Mechanical Seal 523C – Equal to industry standard number 523 / PS-523

    1-7/8″ Single spring mechanical seal with 2.625″ x .500″ cup seat, 2.520″ rotary OD, 2.125″ working length

    Crimped rotary head type N-22, equivalent to Pac-Seal T-21 (long w/l) and Burgmann MG9, can replace seal type E & 1

    Electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
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    537c

    537c

    Item #N/A

    Single Spring Mechanical Seal 537C – Equal to industry standard number 537 / PS-537

    2-1/8″ Single spring mechanical seal with 3.000″ x .562″ cup seat, 2.776″ rotary OD, 2.375″ working length

    Crimped rotary head type N-22, equivalent to Pac-Seal T-21 (long w/l) and Burgmann MG9, can replace seal type E & 1

    Electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
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  • PS-6261 mechanical seal replacement, buy now

    6261

    6261

    Mechanical Seal 6261– Equal to industry standard 6261 / PS-6261

    Industry standard G type / John Crane 2100

    1.875″ x .437″ seat, 1.811″ rotary OD, 1.062″ working length

    BUNA/CAR/CER

    Can use STA-RITE DHH-169 and 13910 BERKELY SLEEVE

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
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    680c / 4240c

    680c / 4240c

    Item #N/A

    Mechanical seal Type 166 , 5/8” shaft size with 1.187″ x .288/.296″ cup seat

    Replaces types such as Type 16, G, A, 6, AV, 2100

    • Please note: CAR/CER/NIT. Our carbon face is precision-machined from solid, resin-impregnated carbon stock—not a molded plastic/phenolic face like ps-702 or other equals. The same premium carbon face is used in CAR/CER/VIT, which substitutes Viton elastomers for higher chemical and temperature resistance

    680C / 4240C — Direct-Fit Replacements

    Includes PS-702, PS-4240, PS-4462, PS-518, PS-701, PS-4284.

    CAR/SIC/VIT material is a direct replacement for ps-4284 

    Available in multiple material configurations to match your application (e.g., CAR/CER/VIT, SIC/SIC/VIT faces).

    Not sure which configuration you need?  Call us anytime—we’ll help you choose the right option.

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    745c

    745c

    Item #N/A

    Single Spring Mechanical Seal 745C – Equal to industry standard number 745 / PS-745

    1-5/8″ Single spring mechanical seal with 2.375″ x .500″ cup seat, 2.185″ rotary OD, 2.000″ working length

    Crimped rotary head type N-22, equivalent to Pac-Seal T-21 (long w/l) and Burgmann MG9, can replace seal type E & 1

    Electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
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    754c

    754c

    Item #N/A

    Single Spring Mechanical Seal 754C – Equal to industry standard number 754 / PS-754

    1″ Single spring mechanical seal with 1.625″ x .437″ cup seat, 1.547″ rotary OD, 1.625″ working length

    Crimped rotary head type N-22, equivalent to Pac-Seal T-21 (long w/l) and Burgmann MG9, can replace seal type E & 1

    Electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
  • Type n11, C, 1 Mechanical pump Seal - buy now

    758c

    758c

    Item #N/A

    Single Spring Mechanical Seal 758C – Equal to industry standard number 758 / PS-758

    1-1/2″ Single spring mechanical seal with 2.125″ x 0.437″ cup seat, 2.067″ rotary OD, 1.125″ working length

    Crimped rotary head– similar to industry types such as  C  &  21  while they can also replace type  D / 2  seal heads with a simple spring change in most cases (spring from before).

    Electro polished 304SS metal parts.

    Single spring mechanical seal, with an elastomeric bellows, independent of the direction of rotation of the shaft. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product