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305c

SKU: N/A


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

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  • DESCRIPTION

    Single Spring Mechanical Seal 305c | PS-305 Equivalent

    Equal to industry standard number 305 / PS-305

    Shaft size: 1-1/2″ single spring mechanical seal with 2.125″ x .437″ cup seat, 2.067″ rotary OD, 1.687″ working length

    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

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

    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 SealsPS replacementspool/spa seals, and our SPS line.

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

  • SPECIFICATIONS

    OEM numbers: S05650, S20774 , ND2502A1 , 707831150 , CPM-10367A, CPM-10368A , PK-0678 , SL-8223 , 2663008, 2675108 , 862-029 , Q26-264-Y2

    Brands: AURORA PUMPS (A PENTAIR Brand) , BERKELEY PUMPS (A PENTAIR Brand) , FAIRBANKS NIJHUIS , GOULDS PUMPS , INGERSOLL-DRESSER PUMPS AND COMPRESSORS , NASH (Division of GARDNER DENVER) , PACO , PEERLESS PUMP COMPANY , TACO , WEINMAN® (Division of CRANE PUMPS & SYSTEMS)

    Nameplate Data: 6YPH, 4EPBL, B1-1/2TQLS, B2TQMS, 2-1/2TQMS, B3TQMS , [Fig. 3169, 3650, 3655,3750 For Group M and K, 2-1/2” Fig. 3430] , GTB , MP-40 , [When Seal is Mounted on Sleeve: 2L-4, 2L-5, 3L-6, 4L-2, 4L-3, 5L-3 When Seal is Mounted on Shaft: 2-1/2JC, 3L-5, 4L-1, 5L-2, 6L-2, 6L03]

  • PHYSICAL PROPERTIES

    T-N11/N22 Seal Heads

    Our T-N11/N22 type seal heads are designed with a reduced outer diameter, making them fully compatible with ANSI seal chamber dimensions. The rotary portion of our seal is typically smaller than the stationary seat, and can fit straight box bores where many other seals cannot.

    These seals are direct replacements for industry-standard T-E / 1 heads as well as C / 21 models.

    Note: The N11/N22 seal designs max shaft size is 2.25″. For larger shafts, please refer to our other seal types.

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

Disclaimer: Seal House USA provides aftermarket replacement parts. Any OEM names are used strictly for cross-reference. We are an independent supplier.