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APPROVED VENDORSingle-Piece Sealing Washers

APPROVED VENDOR Sealing Washer: M21 Screw Sz, Copper, Copper Seal, 21 mm Inside Dia, 26 mm Outside Dia

The APPROVED VENDOR Single-Piece Sealing Washer (SKU 54FP79, MPN M50301.210.0026) is a copper seal for M21 screw sizes, with a 21 mm inside diameter and 26 mm outside diameter, supplied in a 25-pack. This metric…

SKU 3G-OTH-534453

Brand
APPROVED VENDOR
Item
Sealing Washer: M21 Screw Sz, Copper, Copper Seal, 21 mm Inside Dia, 26 mm Outside Dia
Category
Single-Piece Sealing Washers
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
M50301.210.0026
Type
Copper, Copper Seal, 25 PK
Pack Size
Small Pack
Inside Dia
21 mm
Outside Dia
26 mm
Product Type
Sealing Washer
Seal Material
Copper
System of Measurement
Metric
View Full Spec Sheet

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

Product Description

The APPROVED VENDOR Single-Piece Sealing Washer (SKU 54FP79, MPN M50301.210.0026) is a copper seal for M21 screw sizes, with a 21 mm inside diameter and 26 mm outside diameter, supplied in a 25-pack. This metric copper sealing washer is designed for leak-proof sealing in industrial fastening applications.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is an APPROVED VENDOR M21 copper sealing washer used for?

This copper sealing washer is used to create a leak-proof seal around M21 screw fasteners in industrial piping, hydraulic, and pneumatic systems. The copper material deforms under compression to fill gaps, preventing fluid or gas leaks in high-pressure or high-temperature connections.

What are the specifications of the APPROVED VENDOR sealing washer 54FP79?

The APPROVED VENDOR sealing washer (MPN M50301.210.0026) has a 21 mm inside diameter and 26 mm outside diameter, designed for M21 screw sizes. It is made of copper, supplied in a 25-pack, and uses metric measurements for industrial sealing applications.

Where to buy APPROVED VENDOR sealing washers worldwide?

3G Electric supplies the APPROVED VENDOR sealing washer (SKU 54FP79) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site, ensuring you receive genuine industrial sealing components for your fastening needs.

How to install a copper sealing washer for M21 screws?

Place the copper sealing washer over the M21 screw shank before assembly. Tighten the fastener to the recommended torque; the copper compresses to form a tight seal against mating surfaces. Ensure surfaces are clean and free of debris to prevent leaks. Replace after each use for best results.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR single-piece sealing washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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