Seal, Pump Shaft

FLOWSERVE — Pump Shaft Seals — Seal, Pump Shaft

A practical Pump Shaft Seals by FLOWSERVE intended for repeatable results in shop, facility, and field workflows.

Quick specs

• Seat Bore: 1.75 in
• Standard Industry Seal Number: 344, 356, 604, 814
• Material Content Code: BCFJF
• Shaft Size (In.): 1 1/8 in
• Manufacturer Part Number: 21-112-04
• UPC: -

Product information

• UPC: -
• Country of Origin: Mexico
• Manufacturer Part Number: 21-112-04

Dimensions

• Nominal Working Length (In.): 1.062 in
• Seat Thickness: 0.437 in
• Working Length: 1.06 in
• For Shaft Diameter: 1 1/8 in
• Shaft Size (In.): 1 1/8 in

Details

• Seat Bore: 1.75 in
• Standard Industry Seal Number: 344, 356, 604, 814
• Material Content Code: BCFJF
• Replacement For: Crane Type 21 and Sealol Type 43, US Seal Type C
• Item: Replacement Pump Shaft Seal
• Max. Temp. (F): 225 Degrees F
• Seal Type: 21
• Min. Temp. (F): -40 Degrees F
• Maximum Temperature: 400 Degrees F
• Spring Type: Single Spring
• Shaft Seal Type: Mechanical Shaft Seal
• Spring Material: Stainless Steel
• Compatible with Media Type: Cooking Oil
• Standards: ISO 9001, TS16949
• Shut Off Pressure (Maximum): 250 psi
• Gasket Material: Rubber
• Minimum Temperature: -40 Degrees F
• Seal Type Designation: 21

This Pump Shaft Seals is designed to support reliable operation in demanding environments.

Recommended for maintenance and repair workflows and selected for dependable day-to-day use.

Highlights

• Works well in standardized part lists and preventative maintenance schedules.
• Clear specification formatting helps reduce ordering mistakes.
• Organized for straightforward purchasing and stocking.
• Suitable for maintenance, repair, and project-based procurement.

Notes: Review application constraints and installation requirements to ensure the part meets your needs.