All Single Spring Seals
-
3890c
3890c
View ProductEqual to industry standard 3890 / PS-3890 / 200CSP
Spring Spring mechanical seal Type 166 T-16 5/8″ shaft 1.381″/1.375″ x .406″ cup seat nitrile/carbon/ceramic
For variation: 3890cv(machined carbon)
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
-
3890cv
3890cv
View ProductEqual to industry standard 3890v / PS-3890v-cms
Type 166 T-16 5/8″ shaft 1.381″/1.375″ x .406″ cup seat machined carbon/ceramic/viton
For variation: 3890c (carbon/ceramic)
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
-
3992
3992
View ProductMechanical Seal 3992– Equal to industry standard 3992 / PS-3992
Industry standard G type / John Crane 2100
2.125″ x .437″ seat, 2.125″ rotary OD, 1.181″ working length
2100S 38MM ROTARY VIT/CAR ROT ONLY , USE 1-1/2 CUP SEAT VITON
Please click “specifications” below for OEM numbers and Pump Nameplate Data
-
4357
4357
View ProductMechanical Seal 4357– Equal to industry standard 4357 / PS-4357
Industry standard G type / John Crane 2100
2.75 x .500 seat , 2.598 rotary od , 1.500 working length
2″ T-2100 EPDM/CARBON/SILICON CARBIDE B&G # P5001889
Comes with #129 o-ring for sleeve 75 duro (oem seal can have offset center mount o-ring seat, our is L shape o-ring on bottom- same as PS line)
MODEL(S)VSX-VSC 8.125 4X6X10.5B RHR, 10 HP ;VSX – VSH 10.5 , 6X8X10.5 RHR , 75HP ; VSX-VSC 9.375 , 5X6X10.5B
Please click “specifications” below for OEM numbers and Pump Nameplate Data
-
446c
446c
Item #N/A
View ProductSingle Spring Mechanical Seal 446C – Equal to industry standard number 446 / PS-446
1-3/4″ Single spring mechanical seal with 2.500″ x .500″ cup seat, 2.402″ rotary OD, 1.375″ 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
-
4490
4490
View ProductMechanical Seal 4490– Equal to industry standard 4490 / PS-4490
Industry standard G type / John Crane 2100
3.375″ x .562″ seat, 3.268″ rotary OD, 1.811″ working length
VSX series 8×6″ , Sleeve uses #140 o-ring
Please click “specifications” below for OEM numbers and Pump Nameplate Data
-
4518c
4518c
Item #N/A
View ProductSingle Spring Mechanical Seal 4518C – Equal to industry standard number 4518 / PS-4518
3/4″ Single spring mechanical seal with 1.375″ x .405″ cup seat, 1.197″ rotary OD, 1.375″ 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
-
479c
479c
Item #N/A
View ProductSingle Spring Mechanical Seal 479 C – Equal to industry standard number 479 / PS-479
2″ Single spring mechanical seal with 2.750″ x .500″ cup seat, 2.587″ 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
-
4801
4801
View ProductMechanical Seal 4801 — 2-1/2″
Direct-fit G-Type replacement equal to industry standard 4801 and PS-4801. Built to the 2-1/2″ John Crane 2100 style for reliable, leak-tight performance.
Standard material build
-
SC / SC / NIT — Silicon Carbide vs. Silicon Carbide faces; Nitrile elastomers
Durable hard faces for wear resistance; cost-effective Nitrile for general service.
Seat style
-
Notched O-ring seat — Hydromatic upper configuration
(Many OEM builds use a carbon rotary—this version is upgraded to SiC/SiC for longer life.)
Key dimensions
-
Seat: 3.375″ × 0.562″
-
Rotary OD: 3.268″
-
Working length: 1.299″
Cross-references
-
4801 / PS-4801
-
Industry standard G-Type / John Crane 2100 (2-1/2?)
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
-