Seal Specialists Available — Call or Text Anytime for Technical Support or Part Matching 561-414-1046

ENGINEERED TO FIT. BUILT TO LAST.

my cart
0 items

No products in the cart.

checkout
561.414.1046

N Line / PS Replacement Line

  • PS replacement mechanical seal

    358c Mechanical Seal (PS-358) – 3/4″

    358c Mechanical Seal (PS-358) – 3/4″

    Item #N/A

    Single Spring Mechanical Seal 358C — 3/4″ | PS-358 Equivalent

    358c single spring mechanical seal, PS-358 / 358 equivalent. Fits 3/4″ shaft with 1.375″× 0.405″ seat and Type N-11 (Type C/21) rotary head.

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

    Key specs: Shaft size: 3/4″ single spring seal • Seat: 1.375″ x 0.405″ cup • Rotary OD: 1.197″• Working length: 0.875″

    Design & construction:
    Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 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 elastomers

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

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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 1.75 × 1.75 × 1.5 in
  • 359c PS-359 mechanical seal

    359c Mechanical Seal (PS-359) – 5/8″

    359c Mechanical Seal (PS-359) – 5/8″

    Item #N/A

    Single Spring Mechanical Seal 359C —5/8″ | PS-359 Equivalent

    359c single spring mechanical seal, PS-359 / 359 equivalent. Fits 5/8″ shaft with 1.250″× 0.406″ cup seat, 1.063 rotary OD, and 0.875″ working length.

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

    Key specs: Shaft size: 5/8″ single spring seal • Seat: 1.250 x 0.406″ cup • Rotary OD: 1.063″ • Working length: 0.875?

    Design & construction:
    Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 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 elastomers

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

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

    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 Pre-Cut Gaskets.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 2 × 2 × 3 in
  • N22 PS replacement mechanical seal

    361c / 2122 Mechanical Seal (PS-361 / PS-2122) – 1-1/4″

    361c / 2122 Mechanical Seal (PS-361 / PS-2122) – 1-1/4″

    Item #N/A

    Single Spring Mechanical Seal 361c / 2122 | PS-361 / PS-2122 Equivalent

    361c / 2122 single spring mechanical seal, PS-361 / PS-2122 replacement. Fits 1-1/4″ shaft with 1.875″× 0.437″ seat and Type N-22 rotary head.

    Shaft size: 1-1/4″ • Seat: 1.875″ x 0.437″ cup • Rotary OD: 1.787″ • Working length: 1.687″

    Please Note: 361C is a drop-in replacement for U.S. Seal PS-2122 ; Sta-Rite S32013 (and other comparable models), this seal features a smaller-OD rotary for a more universal fit—especially in tight housings and straight-bore/ANSI boxes. The crimped-head design enhances structural integrity and sealing force, delivering higher pressure capability and reliable, long-term performance.

    Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Interchange / replacements:

    • Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9

    • Can replace Type E and Type 1 in many applications (confirm dimensions)

    Design & construction:

    • Electro-polished 304 stainless steel metal parts

    • Elastomeric bellows for stable sealing and easy installation

    • Independent of shaft rotation

    Materials available (select from dropdown menu above):

    • CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers

    • CAR/CER/VIT — Carbon/Ceramic, Viton elastomers

    • SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton elastomers

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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 2.25 × 2.25 × 2.25 in
  • buy PS-381 PS-978 Pump Seal

    381c Mechanical Seal (PS-381) – 1-1/4″

    381c Mechanical Seal (PS-381) – 1-1/4″

    Item #N/A

    Single Spring Mechanical Seal 381C — 1-1/4″ | PS-381 Equivalent

    381c single spring mechanical seal, PS-381 / 381 equivalent. Fits 1-1/4″ shaft with 1.875″× 0.437″ seat and Type N-33 rotary head.

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

    Key specs: Shaft size: 1-1/4″ single spring seal • Seat: 1.875″ x 0.437″ • Rotary OD: 1.787″ • Working length: 1.062″

    Design & construction:
    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. Tapered spring for wide base to fit over impeller hub or other similar feature. Electro-polished 304 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 elastomers

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

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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 2 × 2 × 1.75 in
  • 4240c mechanical seal is a direct-fit 5/ seal, the PS-4240 equivalent, cross-referenced to Goulds 10K10. ps-680c

    4240c Mechanical Seal (PS-4240) — 5/8″ (Goulds 10K10)

    4240c Mechanical Seal (PS-4240) — 5/8″ (Goulds 10K10)

    4240c Mechanical Seal (PS-4240) — 5/8″ (Goulds 10K10)

    The 4240c mechanical seal is a direct-fit 5/8″ shaft seal, the PS-4240 equivalent, cross-referenced to Goulds 10K10. It is built to OEM-equivalent standards or higher with a Type 166 footprint and a machined carbon face for longer service life.

    Machined Carbon Face 
    Our 4240c uses a precision-machined, resin-impregnated carbon face — not the molded plastic/phenolic carbon found in standard equivalents — for smoother sealing and longer life. For the standard molded carbon version, see our 680c seal.

    At a Glance 

    • Goulds Reference: 10K10 (also 10K121, 10K258)

    • PS Reference: PS-4240 / 4240c

    • Shaft size: 5/8″

    • Cup Seat:1.187″ × 0.288″ / 0.296″ (verify thickness)

    • Footprint: Type 166 (replaces Type 16 / G / A / 6 / AV / 2100 styles)

    • Faces: Ceramic/Carbon: Machined carbon (not molded/phenolic) vs. ceramic, with Nitrile elastomers — for smoother sealing and longer life.

    Why This Seal

    Our Carbon/Ceramic build uses precision-machined, resin-impregnated carbon — not the plastic/phenolic used in PS-702 and similar equivalents — for smoother sealing and longer service life.

    Applications

    Built for Goulds pumps using the 5/8″ shaft and Type 166 seal arrangement. Matching from a worn seal? Confirm your shaft size and cup seat thickness first, or send a photo of the old seal and your pump nameplate to info@sealhouseusa.com, or call/text 561-414-1046. No purchase required.

    Working on a Goulds pump? We build complete rebuild kits for Goulds jet and Irri-Gator pumps — this seal together with the diaphragm and the guide vane seal ring, in one part number instead of three.

    Pick the kit that matches your pump:

    Need the parts separately? 5K231 Spacer Ring · 5K256 Diaphragm (GT) · 5K162 Diaphragm (J-series). Don’t see your model? Call or text 561-414-1046 and we’ll match it.

    Explore our full line up of OEM seals 

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

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

    Weight .5 lbs
    Dimensions .75 × .75 × 1 in
  • PS replacement mechanical seal

    446c Mechanical Seal (PS-446) – 1-3/4″

    446c Mechanical Seal (PS-446) – 1-3/4″

    Item #N/A

    Single Spring Mechanical Seal 446C — 1-3/4″ | PS-446 Equivalent

    446c single spring mechanical seal, PS-446 / 446 equivalent. Fits 1-3/4″ shaft with 2.500″× 0.500″ seat and Type N-11 (Type C/21) rotary head.

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

    Key specs: Shaft size: 1-3/4″ single spring seal • Seat: 2.500″ x 0.500″ cup • Rotary OD: 2.402″• Working length: 1.375″

    Design & construction:
    Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 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 elastomers

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

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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .9 lbs
    Dimensions 2.75 × 2.75 × 2 in
  • N22 PS replacement mechanical seal

    4518c Mechanical Seal (PS-4518)- 3/4″

    4518c Mechanical Seal (PS-4518)- 3/4″

    Item #N/A

    Single Spring Mechanical Seal 4518c | PS-4518 Equivalent

    4518c single spring mechanical seal, PS-4518 / 4518 equivalent. Fits 3/4″ shaft with 1.375″× 0.405″ cup seat, 1.197″ rotary OD, 1.375″ working length, and Type N-22 rotary head.

    Shaft size: 3/4″ • Seat: 1.375″ × 0.405″ cup • Rotary OD: 1.197″ • Working length: 1.375″

    Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Interchange / replacements:

    • Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9

    • Can replace Type E and Type 1 in many applications (confirm dimensions)

    Design & construction:

    • Electro-polished 304 stainless steel metal parts

    • Elastomeric bellows for stable sealing and easy installation

    • Independent of shaft rotation

    Material options (select above):

    • CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers

    • CAR/CER/VIT — Carbon/Ceramic, Viton elastomers

    • SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton elastomers

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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 1.75 × 1.75 × 2 in
  • N22 PS replacement mechanical seal

    479c Mechanical Seal (PS-479) – 2″

    479c Mechanical Seal (PS-479) – 2″

    Item #N/A

    Single Spring Mechanical Seal 479c | PS-479 Equivalent

    479c single spring mechanical seal, PS-479 / 479 equivalent. Fits 2″ shaft with 2.750″× 0.500″ cup seat and Type N-22 rotary head.

    Shaft size: 2.000″ • Seat: 2.750″ × 0.500″ cup • Rotary OD: 2.587″ • Working length: 2.125″

    Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Interchange / replacements:

    • Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9

    • Can replace Type E and Type 1 in many applications (confirm dimensions)

    Design & construction:

    • Electro-polished 304 stainless steel metal parts

    • Elastomeric bellows for stable sealing and easy installation

    • Independent of shaft rotation

    Material options (select above):

    • CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers

    • CAR/CER/VIT — Carbon/Ceramic, Viton elastomers

    • SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton elastomers

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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .9 lbs
    Dimensions 3 × 3 × 2.75 in
  • buy PS-514 Pump Seal

    514c Mechanical Seal (PS-514) – 1-5/8″

    514c Mechanical Seal (PS-514) – 1-5/8″

    Item #N/A

    Single Spring Mechanical Seal 514C — 1-5/8″ | PS-514 Equivalent

    514c single spring mechanical seal, PS-514 / 514 equivalent. Fits 1-5/8″ shaft with 2.37″× 0.500″ seat and Type N-33 tapered-spring rotary head.

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

    Key specs: Shaft size: 1-5/8″ single spring seal • Seat: 2.37″ x 0.500″ • Rotary OD: 2.185″ • Working length: 1.375″

    Design & construction:
    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. Tapered spring for wide base to fit over impeller hub or other similar feature. Electro-polished 304 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 elastomers

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

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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .9 lbs
    Dimensions 2.5 × 2.5 × 2 in