We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RFQ CartGet a QuoteSign inSign up
APPROVED VENDOR Sealing Washer: M28 Screw Sz, Copper, Copper Seal, 28 mm Inside Dia, 34 mm Outside Dia - Single-Piece Sealing Washers
APPROVED VENDORSingle-Piece Sealing Washers

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

Brand
APPROVED VENDOR
Item
Sealing Washer: M28 Screw Sz, Copper, Copper Seal, 28 mm Inside Dia, 34 mm Outside Dia
Category
Single-Piece Sealing Washers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
M50302.280.0034
Type
Copper, Copper Seal, 10 PK
Pack Size
Small Pack
Inside Dia
28 mm
Outside Dia
34 mm
Product Type
Sealing Washer
Seal Material
Copper
Seal Material Color
Gray
System of Measurement
Metric
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

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.

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 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.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from APPROVED VENDOR

View all APPROVED VENDOR parts →
Flat Washer: M20 Screw Sz, Fiber Seal, 21 mm Inside Dia, 37 mm Outside Dia, 3 mm Max Thick, 5 PK (MPN Z8650). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Metric; Seal Material: Fiber; Seal Material Color: Red; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
APPROVED VENDOR
Flat Washer: M20 Screw Sz, Fiber Seal, 21 mm Inside Dia, 37 mm Outside Dia, 3 mm Max Thick, 5 PK (MPN Z8650). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Metric; Seal Material: Fiber; Seal Material Color: Red; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
APPROVED VENDOR
APPROVED VENDOR
Sealing Washer: M22 Screw Sz, Copper, Copper Seal, 22 mm Inside Dia, 26 mm Outside Dia, 25 PK (MPN M50302.220.0026). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Seal Material Color: Gray; Pack Size: Small Pack.
Flat Washer: #10 Screw Sz, Fiber Seal, 0.198 in Inside Dia, 3/8 in Outside Dia, 10 PK (MPN Z8605). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Inch; Seal Material: Fiber; Seal Material Color: Red; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
APPROVED VENDOR
Flat Washer: #10 Screw Sz, Fiber Seal, 0.198 in Inside Dia, 3/8 in Outside Dia, 10 PK (MPN Z8605). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Inch; Seal Material: Fiber; Seal Material Color: Red; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
Sealing Washer: M11 Screw Sz, Copper, Copper Seal, 11 mm Inside Dia, 17 mm Outside Dia, 100 PK (MPN M50301.110.0017). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Pack Size: Small Pack.
APPROVED VENDOR
Sealing Washer: M11 Screw Sz, Copper, Copper Seal, 11 mm Inside Dia, 17 mm Outside Dia, 100 PK (MPN M50301.110.0017). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Pack Size: Small Pack.
Bonded Sealing Washer: Buna-N, Green, 1 in Inside Dia, 2 in Outside Dia, 1/16 in Max Thick (MPN ZSW-69). Key specifications — Brand: APPROVED VENDOR; Compatible Product Type: For Use with Nut; Product Type: Sealing Washer; System of Measurement: Inch; X-Ray Detection: Not X-Ray Detectable; Seal Material: Buna-N; Seal Material Color: Green; FDA Approval: Not FDA Approved.
APPROVED VENDOR
Bonded Sealing Washer: Buna-N, Green, 1 in Inside Dia, 2 in Outside Dia, 1/16 in Max Thick (MPN ZSW-69). Key specifications — Brand: APPROVED VENDOR; Compatible Product Type: For Use with Nut; Product Type: Sealing Washer; System of Measurement: Inch; X-Ray Detection: Not X-Ray Detectable; Seal Material: Buna-N; Seal Material Color: Green; FDA Approval: Not FDA Approved.
Sealing Washer: PTFE, White, 0.625 in Inside Dia, 1 in Outside Dia, 3/64 in Max Thick (MPN ZSW-31). Key specifications — Brand: APPROVED VENDOR; Compatible Product Type: For Use with Nut; Product Type: Sealing Washer; System of Measurement: Inch; X-Ray Detection: Not X-Ray Detectable; Seal Material: PTFE; Seal Material Color: White; FDA Approval: Not FDA Approved.
APPROVED VENDOR
Sealing Washer: PTFE, White, 0.625 in Inside Dia, 1 in Outside Dia, 3/64 in Max Thick (MPN ZSW-31). Key specifications — Brand: APPROVED VENDOR; Compatible Product Type: For Use with Nut; Product Type: Sealing Washer; System of Measurement: Inch; X-Ray Detection: Not X-Ray Detectable; Seal Material: PTFE; Seal Material Color: White; FDA Approval: Not FDA Approved.
Flat Washer: M3 Screw Sz, Fiber Seal, 3.2 mm Inside Dia, 7 mm Outside Dia, 0.5 mm Max Thick, 10 PK (MPN Z8642). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Metric; Seal Material: Fiber; Seal Material Color: Red; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
APPROVED VENDOR
Flat Washer: M3 Screw Sz, Fiber Seal, 3.2 mm Inside Dia, 7 mm Outside Dia, 0.5 mm Max Thick, 10 PK (MPN Z8642). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Metric; Seal Material: Fiber; Seal Material Color: Red; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
Sealing Washer: M6 Screw Sz, Copper, Copper Seal, 6 mm Inside Dia, 10 mm Outside Dia, Copper, 25 PK (MPN 5ZLT9). Key specifications — Brand: APPROVED VENDOR; Compatible Product Type: For Use with Nut; Product Type: Sealing Washer; System of Measurement: Metric; X-Ray Detection: X-Ray Detectable; Seal Material: Copper; Seal Material Color: Natural; FDA Approval: Not FDA Approved.
APPROVED VENDOR
Sealing Washer: M6 Screw Sz, Copper, Copper Seal, 6 mm Inside Dia, 10 mm Outside Dia, Copper, 25 PK (MPN 5ZLT9). Key specifications — Brand: APPROVED VENDOR; Compatible Product Type: For Use with Nut; Product Type: Sealing Washer; System of Measurement: Metric; X-Ray Detection: X-Ray Detectable; Seal Material: Copper; Seal Material Color: Natural; FDA Approval: Not FDA Approved.