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

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

SKU: N/A

Weight	1 lbs
Dimensions	8 × 6 × 4 in

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SPS-514 Mechanical Seal (PS-514) - 1-5/8" quantity

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DESCRIPTION

Single Spring Mechanical Seal SPS-514 | PS-514 Equivalent

SPS-514 single spring mechanical seal, PS-514 / 514 equivalent. Fits 1-5/8″ shaft with 2.37″×0.500″ seat and Type D/2 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:
Rotary head Type D/2. 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
SIC/SIC/EPR — Silicon Carbide vs. Silicon Carbide faces, EPR 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
514C	N Line	PS-514	Easy installation & broad compatibility
SPS-514	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: Kit #8, 186543 , ND1246A4 , 45673-20 , 362.432.000 , 186543

Brands: BELL & GOSSETT (A XYLEM Brand) , FAIRBANKS NIJHUIS , GILBARCO VEEDER-ROOT , MARLOW (Division of ITT INDUSTRIES) , WEIL PUMP COMPANY, INC. (Part of WILO USA)

Nameplate Data: Series 1531, 1510 Universal (Large Frame) M2 and C , L Series [Springholder by Customer for Weil] , L-Series

Part number variations
- SPS-514 / SPS514 / SPS 514
- PS-514 / PS514 / PS 514
- 514 mechanical seal / 514 pump seal / “seal 514”
Size / measurement variations
- 1-5/8 mechanical seal / 1.625 mechanical seal / 1 5/8″ seal
- 2.37 × 0.500 seat / 2.375 × 0.500 seat / 2.37 x 0.5 / 2-3/8 × 1/2 seat
- 2.185 rotary OD / 2.185″ OD
- 1.375 working length / 1-3/8 working length
Style / head type variations
- D/2 seal / D2 seal / “Type D2 mechanical seal”
- “single spring D/2 mechanical seal”
Material searches
- carbon ceramic nitrile mechanical seal
- carbon ceramic Viton/FKM mechanical seal
- SiC/SiC Viton/FKM mechanical seal
- SiC/SiC EPR mechanical seal

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