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
APPROVED VENDOR Sealing Washer: M38 Screw Sz, Copper, Copper Seal, 38 mm Inside Dia, 44 mm Outside Dia - Single-Piece Sealing Washers
APPROVED VENDORSingle-Piece Sealing Washers

APPROVED VENDOR Sealing Washer: M38 Screw Sz, Copper, Copper Seal, 38 mm Inside Dia, 44 mm Outside Dia

The APPROVED VENDOR Sealing Washer (SKU 54FR15) is a single-piece copper sealing washer for M38 screw sizes, supplied in a 10-pack. It features a 38 mm inside diameter and 44 mm outside diameter, with a gray copper…

SKU 3G-OTH-534461

Brand
APPROVED VENDOR
Item
Sealing Washer: M38 Screw Sz, Copper, Copper Seal, 38 mm Inside Dia, 44 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
M50302.380.0044
Type
Copper, Copper Seal, 10 PK
Pack Size
Small Pack
Inside Dia
38 mm
Outside Dia
44 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 54FR15) is a single-piece copper sealing washer for M38 screw sizes, supplied in a 10-pack. It features a 38 mm inside diameter and 44 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 M38 copper sealing washer used for?

This single-piece copper sealing washer is used to create a leak-proof seal on M38 threaded connections in industrial fluid and gas systems. It is commonly applied in pumps, hydraulics, and combustion equipment where a reliable metal-to-metal seal is required under high temperature or pressure.

What are the specifications of the APPROVED VENDOR sealing washer 54FR15?

The APPROVED VENDOR sealing washer (SKU 54FR15) has a 38 mm inside diameter and 44 mm outside diameter. It is made of copper with a gray seal material, designed for M38 screw sizes. It comes in a 10-pack small pack and is a metric single-piece sealing washer.

Where to buy APPROVED VENDOR sealing washers worldwide?

3G Electric supplies the APPROVED VENDOR sealing washer (SKU 54FR15) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this 10-pack of M38 copper sealing washers.

How to install a copper sealing washer on an M38 bolt?

Clean the mating surfaces and ensure the copper washer is free of debris. Place the washer over the M38 bolt or into the recess. Tighten the fastener to the manufacturer's recommended torque. Copper washers deform slightly under compression to form a reliable seal; avoid overtightening.

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 →
Sealing Washer: M36 Screw Sz, Copper, Copper Seal, 36 mm Inside Dia, 42 mm Outside Dia, 10 PK (MPN M50302.360.0042). 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: M36 Screw Sz, Copper, Copper Seal, 36 mm Inside Dia, 42 mm Outside Dia, 10 PK (MPN M50302.360.0042). 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: M24 Screw Sz, Copper, Copper Seal, 24 mm Inside Dia, 30 mm Outside Dia, 25 PK (MPN M50302.240.0030). 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: M24 Screw Sz, Copper, Copper Seal, 24 mm Inside Dia, 30 mm Outside Dia, 25 PK (MPN M50302.240.0030). 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: M15 Screw Sz, Copper, Copper Seal, 15 mm Inside Dia, 20 mm Outside Dia, 50 PK (MPN M50302.150.0020). 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: 3/4 in Screw Sz, Fiber Seal, 0.755 in Inside Dia, 1 in Outside Dia, 5 PK (MPN Z8621). 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: 3/4 in Screw Sz, Fiber Seal, 0.755 in Inside Dia, 1 in Outside Dia, 5 PK (MPN Z8621). 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
APPROVED VENDOR
Sealing Washer: M16 Screw Sz, Copper, Copper Seal, 16 mm Inside Dia, 21 mm Outside Dia, 50 PK (MPN M50302.160.0021). 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: M30 Screw Sz, Copper, Copper Seal, 30 mm Inside Dia, 38 mm Outside Dia, 10 PK (MPN M50302.300.0038). 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: M30 Screw Sz, Copper, Copper Seal, 30 mm Inside Dia, 38 mm Outside Dia, 10 PK (MPN M50302.300.0038). 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: 5/16 in Screw Sz, Fiber Seal, 0.315 in Inside Dia, 9/16 in Outside Dia, 10 PK (MPN Z8610). 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: 5/16 in Screw Sz, Fiber Seal, 0.315 in Inside Dia, 9/16 in Outside Dia, 10 PK (MPN Z8610). 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: M2 Screw Sz, Fiber Seal, 2.2 mm Inside Dia, 5 mm Outside Dia, 0.3 mm Max Thick, 10 PK (MPN Z8640). 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: M2 Screw Sz, Fiber Seal, 2.2 mm Inside Dia, 5 mm Outside Dia, 0.3 mm Max Thick, 10 PK (MPN Z8640). 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.