We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 3/4 in Shaft Dia. - Mechanical Shaft Seals

FLOWSERVEMechanical Shaft Seals

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 3/4 in Shaft Dia.

The FLOWSERVE Replacement Pump Shaft Seal is a mechanical shaft seal with a single spring design, featuring a rubber gasket and stainless steel spring. Designated as Seal Type 21, it is designed for a 3/4 in shaft…

SKU 3G-OTH-95215

Brand

FLOWSERVE

Item

Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 3/4 in Shaft Dia.

Category

Mechanical Shaft Seals

Available to Order

Trade pricing by quote — replies within 24h

Qty

WhatsApp an engineer

No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.

Create free account →Log in

Worldwide Shipping

Air & sea freight

Datasheet on Request

Technical specs

1-Day Quote

Replies within 24h

Technical Specifications

FLOWSERVE

Manufacturer Part Number

21-075-98 

Type

21, Cooking Oil 

Shaft Dia.

3/4 in 

Spring Type

Single Spring 

Gasket Material

Rubber 

Spring Material

Stainless Steel 

Seal Type Designation

21

Replaces Grainger Seal

5P389 

View Full Spec Sheet

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

FLOWSERVE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FLOWSERVE Replacement Pump Shaft Seal is a mechanical shaft seal with a single spring design, featuring a rubber gasket and stainless steel spring. Designated as Seal Type 21, it is designed for a 3/4 in shaft diameter and is suitable for use with cooking oil. This seal replaces Grainger Seal 5P389 and is identified by manufacturer part number 21-075-98.

Used in

Common applications for FLOWSERVE

Water and wastewater pumping — FLOWSERVE Type 21 mechanical seal (e.g., MPN 21-100-10) for centrifugal pumps in municipal water treatment

Hydrocarbon processing — FLOWSERVE Type 68 mechanical seal (e.g., MPN 68-062-214) for diesel and light oil transfer pumps

Food processing — FLOWSERVE Type 21 seal (MPN 21-137-04) for cooking oil circulation pumps in edible oil refineries

Chemical transfer — FLOWSERVE Type 51 narrow cross-section seal (MPN 51-087-05) for compact chemical dosing pumps

HVAC and cooling systems — FLOWSERVE Type 16 unitized rotary seal (MPN 16-062-11) for chilled water pump shaft sealing

General industrial mixing — FLOWSERVE Type 52 narrow cross-section seal (MPN 52-125-05) for agitator shafts in batch processing tanks

FLOWSERVE Products

3G Electric supplies FLOWSERVE mechanical shaft seals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all FLOWSERVE products →Contact our engineers →

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 3/4 in Shaft Dia., Cooking Oil (MPN 21-075-99). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 21; Replaces Grainger Seal: 5P388.

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 5/8 in Shaft Dia., Cooking Oil (MPN 21-062-07). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 21; Replaces Grainger Seal: 5P387.

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 5/8 in Shaft Dia., Cooking Oil (MPN 21-062-22). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 21.

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 5/8 in Shaft Dia., Cooking Oil (MPN 21-062-50). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 21; Replaces Grainger Seal: 5P384.

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 1 1/8 in Shaft Dia., Cooking Oil (MPN 21-112-41). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 21.

FLOWSERVE Shaft Seal: Mechanical Shaft Seal, 21, 1 1/4 in Shaft Dia., Cooking Oil, Single Spring (MPN 21-125-04). Key specifications — Brand: FLOWSERVE; Gasket Material: Buna-N; Spring Material: 18-8; Spring Type: Single Spring; Ring Material: Carbon; Seal Type Designation: 21; Replaces Grainger Seal: 5P394.

More from FLOWSERVE

View all FLOWSERVE parts →

FLOWSERVE Unitized Rotary Replacement Pump Shaft Seal: Mechanical Shaft Seal, 16, 3/4 in Shaft Dia. (MPN 16-075-07). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 16; Replaces Grainger Seal: 5P416.

FLOWSERVE Replacement Pump Shaft Seal: Mechanical Shaft Seal, 21, 1 1/4 in Shaft Dia., Cooking Oil (MPN 21-125-13). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 21.

FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 68, 3/4 in Shaft Dia., 0.27 in Working Lg, 18-8 (MPN 68-075-400-02). Key specifications — Brand: FLOWSERVE; Gasket Material: Viton; Spring Material: 18-8; Spring Type: Single Spring; Ring Material: Carbon; Seal Type Designation: 68.

FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 52, 1 3/8 in Shaft Dia., 1.13 in Working Lg, 316 (MPN 52-137-05). Key specifications — Brand: FLOWSERVE; Gasket Material: Viton; Spring Material: 316; Spring Type: Single Spring; Ring Material: Carbon; Seal Type Designation: 52.

FLOWSERVE Narrow Cross-section Replacement Pump Shaft Seal: Mechanical Shaft Seal, 52, Single Spring (MPN 52-100-05). Key specifications — Brand: FLOWSERVE; Gasket Material: Rubber; Spring Material: 316 Stainless Steel; Spring Type: Single Spring; Seal Type Designation: 52.

FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 51, 1 7/8 in Shaft Dia., 2.13 in Working Lg, 316 (MPN 51-187-04). Key specifications — Brand: FLOWSERVE; Gasket Material: Buna; Spring Material: 316; Spring Type: Single Spring; Ring Material: Carbon; Seal Type Designation: 51.

FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 21, 1 in Shaft Dia., 1 in Working Lg, 18-8, Viton (MPN 21-100-10). Key specifications — Brand: FLOWSERVE; Gasket Material: Viton; Spring Material: 18-8; Spring Type: Single Spring; Ring Material: Carbon; Seal Type Designation: 21.

FLOWSERVE Mechanical Seal: Mechanical Shaft Seal, 21, 1 5/8 in Shaft Dia., 1.5 in Working Lg, 18-8 (MPN 21-162-04). Key specifications — Brand: FLOWSERVE; Gasket Material: Buna; Spring Material: 18-8; Spring Type: Single Spring; Ring Material: Carbon; Seal Type Designation: 21.