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561.414.1046

177C Mechanical Seal (PS-177) – 1-3/8″

Type n11, C, 1 Mechanical pump Seal - buy now

177C Mechanical Seal (PS-177) – 1-3/8″

SKU: N/A Brand: VULCAN ENGINEERING

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

    Single Spring Mechanical Seal 177C — 1-3/8″ | PS-177 Equivalent

    177c single spring mechanical seal, PS-177 / 177 equivalent. Fits 1-3/8″ shaft with 2.000″×0.437″ seat and Type N-11 (Type C/21) rotary head

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

    Key specs: Shaft size: 1-3/8″ single spring seal • Seat: 2.000″ x 0.437″ cup • Rotary OD: 1.941″ • Working length: 1.125″

    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/FKM elastomers

    • SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton/FKM 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
  • SPECIFICATIONS
    Cross References / Alternative Part Numbers

    OEM numbers: 

    177 CAR/CER/NIT: 52115605801 , 52122693801A , 925-7523 , DP0298 , Z109-500 , 180015 , 9014027 , 296-5250-99 , 81031-1 , PK-0874 , 6840666 , 732057 , X2U59-1 , 1706 , 5P397 , DP0298

    177 SIC/SIC/VIT: 84105-18

    Brands: A-C PUMP (A XYLEM Brand) , AQUA-CHEM, INC. , ATLANTIC FLUIDICS, INC. , BELL & GOSSETT (A XYLEM Brand) , CAMERON COMPRESSION SYSTEMS , DOMESTIC PUMP , ESSICK AIR PRODUCTS, INC. , GOULDS PUMPS , HALE PRODUCTS, INC. , JAEGER , MIDLAND PRODUCTS (Division of CRANE PUMPS & SYSTEMS) , NASH (Division of GARDNER DENVER) , PAUL MUELLER COMPANY , PERFECTING (Division of DUFF – NORTON) , REXNORD INDUSTRIES, LLC. , STERLING MACHINERY , TEEL PUMP , XYLEM INC

    Brands SIC/SIC/VIT only: GUSHER PUMPS

    Pump Nameplate Data: 6X4X12 , 8X5X12 , 8X6X12 MAXEAL®-V , 40M and 40W , MH-50, MH-80

    Part number variations

    PS-177 / PS177 / PS 177

    177 / 177 seal / 177 mechanical seal

    177c / 177 C / 177-c

    Size / measurement variations

    1-3/8″ mechanical seal / 1.375″ mechanical seal / 1 3/8 seal

    2.000 × 0.437 seat / 2.000 × 7/16 seat / 2 x .437 seat

    1.941 rotary OD / 1.941″ OD

    1.125 working length / 1-1/8 working length

    Head / style variations

    N-11 seal / N11 seal / Type N11 mechanical seal

    Type C / 21 seal / Type 21 mechanical seal / C21 seal

    Type D/2 replacement (spring change)

    Material searches

    carbon ceramic nitrile mechanical seal

    carbon ceramic viton mechanical seal

    SiC/SiC viton mechanical seal

  • 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 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.

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