SPS-205 Mechanical Seal (PS-205 Equivalent) – 1-3/4″

PS-205 mechanical seal PS-278 pump seal PS-279

SPS-205 Mechanical Seal (PS-205 Equivalent) – 1-3/4″

SKU: N/A

Weight	1 lbs
Dimensions	8 × 6 × 4 in

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SPS-205 Mechanical Seal (PS-205 Equivalent) - 1-3/4" quantity

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DESCRIPTION

Single Spring Mechanical Seal SPS-205 | PS-205 Equivalent

SPS-205 single spring mechanical seal, equivalent to industry standard PS-205 / 205. Fits 1-3/4″ shaft with 2.500″×0.500″ seat and Type E/1 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″ • Rotary OD: 2.402″ • Working length: 2.000″

Design & construction:
Rotary head Type E/1. Electro-polished 316 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

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

Both PS replacements? Which should I choose? Check out more on our Seal House Seal Guide

Seal Model	Product Line	Replaces	Features & Focus
205C	N Line	PS-514	Easy installation & broad compatibility
SPS-205	SPS Line	PS-514	Premium build for longevity & like for like replacement.

SPS Line

Same Fit. Lasting Reliability.

Our SPS single-spring seals are like-for-like replacements for industry-standard E/1, D/2, and C/21 heads—delivering the same fit and function with upgraded materials designed for extended service life.

What sets SPS apart:

Heavier elastomer bellows for improved structural integrity and stability under pressure
Resin-impregnated, abrasion-resistant carbon faces — double-density carbon designed for enhanced hardness and durability
316/304 stainless steel components for superior corrosion protection across E/1, D/2, and C/21 head styles
Precision-finished rotary heads with a brushed appearance for a high-quality machined look and consistent sealing performance
Built to exacting standards for dependable performance across a wide range of pump applications

Engineered to rigorous standards, SPS seals provide a durable, dependable alternative to common aftermarket or OEM options—compare them against your current line and see the difference.

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.

SPECIFICATIONS
Cross Reference / Alternative Part Numbers

OEM numbers: 08-212-616-001 , 425920-001 , S07277, S20776, S20777 , 91867956 , 10-330 , SL-7090, 14007090 , 2663044 , 13-650-3011 , 5P378 , Q26-222-Y2

205 CAR/CER/VIT only: 5NC34

Brands: A-C PUMP (A XYLEM Brand) , ARMSTRONG PUMPS, INC. , BERKELEY PUMPS (A PENTAIR Brand) , FEDERAL PUMP CORPORATION , GRUNDFOS, INC. , JACUZZI , LEWIS® PUMPS , PACO , PEERLESS PUMP COMPANY , SYNCROFLO, INC. , TEEL PUMP , WEINMAN® (Division of CRANE PUMPS & SYSTEMS)

Nameplate Data: [C16, C17S, F2-2, F2-5, F2-8 F2L-2, F2L-4 MAXEAL V11®] , A Row Pump, B3TPMS , 3CLSU , [When Seal is Mounted on Sleeve: 3L-4, 3L-5, 4L-1, 5L-2, 6L-2, 6L-3
When Seal is Mounted on Shaft: 2-1/2JC]

Part number variations
- SPS-205 / SPS205 / SPS 205
- PS-205 / PS205 / PS 205
- “205 mechanical seal” / “seal 205”
Size / measurement variations
- 1-3/4 mechanical seal / 1.75 mechanical seal / 1 3/4″ seal
- 2.500 x 0.500 seat / 2.5 × 0.5 / 2-1/2 × 1/2 seat
- “2.402 rotary OD”
- “2.000 working length”
Design/style variations
- “E/1 seal” / “Type E1 mechanical seal”
- “single spring E/1 mechanical seal”
Material searches
- carbon ceramic nitrile mechanical seal
- carbon ceramic Viton/FKM mechanical seal
- SiC/SiC Viton/FKM mechanical seal

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