Metric Copper Sealing Washers

d Diameter
24mm
Adaptall Material
Steel
S Misc
1.4mm
Adaptall Shape
Component
Side 1 Callout
M18 X 1.5
Side 1 Gender
-
Side 1 Size
18mm
Side 1 Type
Metric
Alternate Part Numbers
Alternate Part Number MI-08790514, Alternate Part Number MINO-03671X90024
Brand
Adaptall America
Brand
Adaptall
Pack Size
1.00
UOM
EA
Supplier Part Number
3500-18MM
Product Weight
0.01 lbs

Product Questions & Answers

What size system is this sealing washer meant for? Just want to make sure it fits my M18 setup.
Question by: Ronnie P on Nov 5, 2025, 5:44 PM
These copper sealing washers are designed to fit M18 x 1.5 metric systems, providing a secure seal to maintain equipment integrity.
Answer by: Customer Support on Nov 7, 2025, 12:24 PM
got an M18 x 1.5 setup, is this washer the right size or am i gonna be fighting it
Question by: Cody H on Dec 4, 2025, 11:02 AM
These are made for M18 x 1.5 metric systems with an 18 mm side 1 size. The washer itself is 24 mm in diameter and 1.4 mm thick, so it matches that M18 x 1.5 callout while giving you a sealing surface.
Answer by: Customer Support on Dec 5, 2025, 1:57 PM
these fit an M18 x 1.5 port, that right? just want to make sure before I order a bunch of em
Question by: Harvey W on Oct 11, 2025, 12:44 PM
that's correct. The part number 3500-18MM is sized for M18 x 1.5 metric fittings, with an outer diameter of 24mm and a thickness of 1.4mm. Pretty standard sealing washer for that thread size.
Answer by: Customer Support on Oct 13, 2025, 9:32 AM