Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Image not available
APPROVED VENDORSingle-Piece Sealing Washers

APPROVED VENDOR Sealing Washer: M40 Screw Sz, Copper, Copper Seal, 40 mm Inside Dia, 47 mm Outside Dia

The APPROVED VENDOR M40 Screw Size Sealing Washer (SKU 54FR16, MPN M50302.400.0047) is a single-piece copper sealing washer with a 40 mm inside diameter and 47 mm outside diameter, supplied in a 10-pack. This metric…

SKU 3G-OTH-534506

Brand
APPROVED VENDOR
Item
Sealing Washer: M40 Screw Sz, Copper, Copper Seal, 40 mm Inside Dia, 47 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
M50302.400.0047
Type
Copper, Copper Seal, 10 PK
Pack Size
Small Pack
Inside Dia
40 mm
Outside Dia
47 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 M40 Screw Size Sealing Washer (SKU 54FR16, MPN M50302.400.0047) is a single-piece copper sealing washer with a 40 mm inside diameter and 47 mm outside diameter, supplied in a 10-pack. This metric copper seal is designed for M40 screw applications, providing a reliable sealing solution across 14 industrial departments — and we supply far more than is listed. Our specialist depth in combustion, pumps and controls (as an authorised distributor for brands like FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo and Fluke) ensures we interpret your demand and deliver the right answer, not just a catalog.

Frequently Asked Questions

What is the APPROVED VENDOR M40 sealing washer used for?

The APPROVED VENDOR M40 sealing washer is used to create a leak-proof seal in M40 screw applications, such as in plumbing, hydraulic, and pneumatic systems. Its copper construction withstands high temperatures and pressures, making it suitable for industrial maintenance across 14 departments including combustion, pumps, and controls.

What are the specifications of the APPROVED VENDOR M40 sealing washer?

The APPROVED VENDOR M40 sealing washer (MPN M50302.400.0047) has a 40 mm inside diameter and 47 mm outside diameter. It is made of copper with a gray seal material color, supplied in a 10-pack. This metric single-piece washer is designed for M40 screw sizes and is suitable for general industrial sealing.

Where to buy the APPROVED VENDOR M40 sealing washer worldwide?

3G Electric supplies the APPROVED VENDOR M40 sealing washer worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order this copper sealing washer for M40 applications, available in a 10-pack.

How to install the APPROVED VENDOR M40 copper sealing washer?

To install the APPROVED VENDOR M40 copper sealing washer, place it over the bolt or screw before tightening. Ensure the mating surfaces are clean and free of debris. Tighten to the manufacturer's recommended torque for M40 fasteners. Copper washers can be reused if not deformed, but replacement is advised for critical seals.

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: 3/8 in Screw Sz, Fiber Seal, 0.379 in Inside Dia, 1/2 in Outside Dia, 10 PK (MPN Z8612). 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: 3/8 in Screw Sz, Fiber Seal, 0.379 in Inside Dia, 1/2 in Outside Dia, 10 PK (MPN Z8612). 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.
Flat Washer: #4 Screw Sz, Neoprene Seal, 0.125 in Inside Dia, 3/8 in Outside Dia, Neoprene, 25 PK (MPN Z8505). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Inch; Seal Material: Neoprene; Seal Material Color: Black; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
APPROVED VENDOR
Flat Washer: #4 Screw Sz, Neoprene Seal, 0.125 in Inside Dia, 3/8 in Outside Dia, Neoprene, 25 PK (MPN Z8505). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Inch; Seal Material: Neoprene; Seal Material Color: Black; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
APPROVED VENDOR
APPROVED VENDOR
Sealing Washer: M10 Screw Sz, Copper, Copper Seal, 10 mm Inside Dia, 19 mm Outside Dia, 100 PK (MPN M50302.100.0019). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Seal Material Color: Gray; Pack Size: Small Pack.
APPROVED VENDOR
APPROVED VENDOR
Sealing Washer: M26 Screw Sz, Copper, Copper Seal, 26 mm Inside Dia, 32 mm Outside Dia, 10 PK (MPN M50302.260.0032). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Seal Material Color: Gray; Pack Size: Small Pack.
Sealing Washer: M17.5 Screw Sz, Copper, Copper Seal, 17.5 mm Inside Dia, 25 mm Outside Dia, 25 PK (MPN M50302.175.0025). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Seal Material Color: Gray; Pack Size: Small Pack.
APPROVED VENDOR
Sealing Washer: M17.5 Screw Sz, Copper, Copper Seal, 17.5 mm Inside Dia, 25 mm Outside Dia, 25 PK (MPN M50302.175.0025). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Seal Material Color: Gray; Pack Size: Small Pack.
Sealing Washer: M16.5 Screw Sz, Copper, Copper Seal, 16.5 mm Inside Dia, 24 mm Outside Dia, 25 PK (MPN M50302.165.0024). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Seal Material Color: Gray; Pack Size: Small Pack.
APPROVED VENDOR
Sealing Washer: M16.5 Screw Sz, Copper, Copper Seal, 16.5 mm Inside Dia, 24 mm Outside Dia, 25 PK (MPN M50302.165.0024). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Seal Material Color: Gray; Pack Size: Small Pack.
APPROVED VENDOR
APPROVED VENDOR
Sealing Washer: M10 Screw Sz, Copper, Copper Seal, 10 mm Inside Dia, 20 mm Outside Dia, 100 PK (MPN M50301.100.0020). Key specifications — Brand: APPROVED VENDOR; Product Type: Sealing Washer; System of Measurement: Metric; Seal Material: Copper; Pack Size: Small Pack.
Flat Washer: #6 Screw Sz, Neoprene Seal, 0.156 in Inside Dia, 7/16 in Outside Dia, Neoprene, 25 PK (MPN Z8510). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Inch; Seal Material: Neoprene; Seal Material Color: Black; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.
APPROVED VENDOR
Flat Washer: #6 Screw Sz, Neoprene Seal, 0.156 in Inside Dia, 7/16 in Outside Dia, Neoprene, 25 PK (MPN Z8510). Key specifications — Brand: APPROVED VENDOR; Product Type: Flat Washer; System of Measurement: Inch; Seal Material: Neoprene; Seal Material Color: Black; FDA Approval: Not FDA Approved; Metal Detection: Not Metal Detectable.