RS PRO Nitrile Butadiene Rubber, Mild Steel Sealing Washer Sealing Washer, 5.21 mm ID, 8.38 mm OD

RS Stock No.:: 727-122
Manufacturer:: RS PRO

RS PRO Nitrile Butadiene Rubber, Mild Steel Sealing Washer Sealing Washer, 5.21 mm ID, 8.38 mm OD

Subtotal (1 bag of 25 units)*

PHP1,242.30

(exc. VAT)

PHP1,391.38

(inc. VAT)

FREE delivery for orders over ₱5,000.00

In Stock

Plus 8 unit(s) shipping from November 02, 2026
Plus 14 unit(s) shipping from January 08, 2027

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Bag(s)	Per Bag	Per Unit*
1 +	PHP1,242.30	PHP49.692

*price indicative

RS Stock No.:: 727-122
Manufacturer:: RS PRO

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Product Type	Sealing Washer
	Sub Type	Sealing Washer
	Material	Nitrile Butadiene Rubber, Mild Steel
	Inside Diameter	5.21mm
	Outside Diameter	8.38mm
	Colour	Black
	Minimum Operating Temperature	-25°C
	Thickness	1.22mm
	Maximum Operating Temperature	120°C
	Standards/Approvals	BS 21, ISO 228

	Select all
	Brand RS PRO
	Product Type Sealing Washer
	Sub Type Sealing Washer
	Material Nitrile Butadiene Rubber, Mild Steel
	Inside Diameter 5.21mm
	Outside Diameter 8.38mm
	Colour Black
	Minimum Operating Temperature -25°C
	Thickness 1.22mm
	Maximum Operating Temperature 120°C
	Standards/Approvals BS 21, ISO 228

RS PRO Datasheet

RoHS Status: Exempt

RS PRO 5.21 mm Sealing Washer, Nitrile Butadiene Rubber

This RS PRO sealing washer is designed to provide a reliable seal in various industrial applications. Made from Nitrile Butadiene Rubber and Mild Steel, it ensures durability and resistance to a range of temperatures. Ideal for preventing leaks in piping systems, this washer is suitable for use in both high and low-temperature environments.

Features and Benefits

Material Composition: Combines Nitrile Butadiene Rubber and Mild Steel for enhanced durability and flexibility.
Temperature Range: Operates effectively between -25 °C and 120 °C, accommodating various environmental conditions.
Standard Compliance: Meets BS 21 and ISO 228 standards, ensuring reliability and quality.

Applications

Plumbing systems
Hydraulic systems
Automotive industry

Additional Information

Colour: Black
Inside Diameter: 5.21 mm
Outside Diameter: 8.38 mm
Thickness: 1.22 mm

Why RS PRO?

RS PRO is the own brand of RS, offering professional quality products and solutions across all industries and technologies. Our product range is rigorously tested, inspected, and audited against demanding international standards to provide you with industrial-grade quality, at the right price. Making RS PRO your smart choice.