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DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 0.25 in ID, 0.75 in OD - Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
DDSSingle-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores

DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 0.25 in ID, 0.75 in OD

The DDS Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case for rough bores, featuring a spring-loaded lip. This SF-design seal is supplied in inch measurements with a 0.25-inch inner diameter…

SKU 3G-OTH-125195

Also listed as: 6351905635SF · 6 3519 056 35SF · 6-3519-056-35SF

Brand
DDS
Item
Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 0.25 in ID, 0.75 in OD
Category
Single-Lip Oil Seals with Rubber-Enclosed Cases for Rough Bores
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

DDS
Manufacturer Part Number
6.3519.056.35SF
Type
SF, Nitrile
OD
0.75 in
Wd
0.25 in
ID
0.25 in
Seal Design
SF
System of Measurement
Inch

Technical Documents

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DDS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DDS Rotary Shaft Seal is a single-lip oil seal with a rubber-enclosed case for rough bores, featuring a spring-loaded lip. This SF-design seal is supplied in inch measurements with a 0.25-inch inner diameter, 0.75-inch outer diameter, and 0.25-inch width, constructed from nitrile material (MPN 6.3519.056.35SF).

Frequently Asked Questions

What is a DDS rotary shaft seal used for?

A DDS rotary shaft seal prevents fluid leakage and contaminant ingress in rotating equipment such as pumps, gearboxes, and motors. Its single-lip design with spring and rubber-enclosed case suits rough bores, making it ideal for industrial machinery requiring reliable sealing in inch-dimension applications.

What are the specifications of the DDS rotary shaft seal MPN 6.3519.056.35SF?

This DDS rotary shaft seal has a 0.25-inch inner diameter, 0.75-inch outer diameter, and 0.25-inch width. It features a single lip with spring, SF design, and nitrile material. The rubber-enclosed case is designed for rough bores, and the system of measurement is inch.

Where to buy DDS rotary shaft seals worldwide?

3G Electric supplies DDS rotary shaft seals worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine parts like the MPN 6.3519.056.35SF and deliver to your facility. Contact us for availability and lead time on this inch-measurement seal.

How to install a DDS single-lip oil seal with rubber-enclosed case?

Ensure the bore is clean and free of burrs. Lubricate the seal lip and shaft with compatible oil. Press the seal evenly into the bore using a suitable driver, avoiding damage to the rubber case. For rough bores, the rubber-enclosed case compensates for surface irregularities. Follow manufacturer guidelines for shaft speed and alignment.

Used in

Common applications for DDS
Industrial pump shaft sealing — DDS dual-lip TC seals for water and wastewater pumps
Gearbox oil retention — DDS TA seals with reinforced metal cases in smooth bore housings
Compressor crankshaft sealing — DDS single-lip SA seals for moderate pressure applications
Food processing equipment — DDS fluoroelastomer TCN seals for chemical resistance
Conveyor drive motor sealing — DDS SC seals with rubber-enclosed cases for rough bores
Hydraulic power unit sealing — DDS dual-lip TCN seals for high-temperature oil systems

DDS Products

3G Electric supplies DDS single-lip oil seals with rubber-enclosed cases for rough bores. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 0.875 in ID, 1.384 in OD, 0.375 in Wd (MPN 22.2235.159.52SF)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 0.875 in ID, 1.384 in OD, 0.375 in Wd (MPN 22.2235.159.52SF)
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 2.5 in ID, 3.25 in OD, 0.375 in Wd (MPN 63.582.559.52SF)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 2.5 in ID, 3.25 in OD, 0.375 in Wd (MPN 63.582.559.52SF)
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 340 mm ID, 380 mm OD, 18 mm Wd (MPN 34038018SF)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 340 mm ID, 380 mm OD, 18 mm Wd (MPN 34038018SF)
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 500 mm ID, 540 mm OD, 20 mm Wd (MPN 50054020SF)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 500 mm ID, 540 mm OD, 20 mm Wd (MPN 50054020SF)
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 1.75 in ID, 2.5 in OD, 0.375 in Wd (MPN 44.4563.59.52SF)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 1.75 in ID, 2.5 in OD, 0.375 in Wd (MPN 44.4563.59.52SF)
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 24.5 mm ID, 40 mm OD, 8.5 mm Wd (MPN 24.5408.5SF)
DDS
DDS Rotary Shaft Seal: 1 Lip w/Spring, SF, Nitrile, 24.5 mm ID, 40 mm OD, 8.5 mm Wd (MPN 24.5408.5SF)

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