APPROVED VENDOR Sealing Washer: M28 Screw Sz, Copper, Copper Seal, 28 mm Inside Dia, 34 mm Outside Dia
The APPROVED VENDOR Sealing Washer (SKU 54FR07) is a single-piece copper sealing washer for M28 screw sizes, supplied in a 10-pack. It has a 28 mm inside diameter and 34 mm outside diameter, with a gray copper seal…
SKU 3G-OTH-534566
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Product Description
The APPROVED VENDOR Sealing Washer (SKU 54FR07) is a single-piece copper sealing washer for M28 screw sizes, supplied in a 10-pack. It has a 28 mm inside diameter and 34 mm outside diameter, with a gray copper seal material. This metric sealing washer is part of our curated industrial supply across 14 departments, backed by specialist expertise in combustion, pumps, and controls.
Frequently Asked Questions
What is an APPROVED VENDOR M28 copper sealing washer used for?
This copper sealing washer is used to create a leak-proof seal between bolted joints, such as in hydraulic systems, pumps, and industrial piping. The 28 mm inside diameter fits M28 screws, and the copper material deforms under compression to seal effectively.
What are the specifications of the APPROVED VENDOR sealing washer 54FR07?
This sealing washer has a 28 mm inside diameter and 34 mm outside diameter, made of copper with a gray color. It is a metric single-piece washer for M28 screw sizes, supplied in a 10-pack small pack. The manufacturer part number is M50302.280.0034.
Where to buy APPROVED VENDOR sealing washers worldwide?
3G Electric supplies the APPROVED VENDOR sealing washer (SKU 54FR07) to customers worldwide. We handle full logistics, customs clearance, and delivery for global orders. Contact us to source this copper sealing washer for your industrial maintenance or repair needs.
How to install a copper sealing washer for M28 screws?
Place the copper sealing washer over the M28 screw before assembly. Tighten the fastener to the manufacturer's recommended torque, allowing the copper to compress and form a seal. Avoid over-tightening, which can damage the washer. Replace with a new washer each time the joint is disassembled.
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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.





