18-8 Stainless Steel 800 Series MS Flat Washers

Why 18-8 stainless for MS washers?

18-8 stainless gives these MS washers strong corrosion and oxidation resistance, which suits military and aerospace hardware exposed to weather, salt, and harsh field conditions. Beyond the material, the 800-series MS standard guarantees the dimensions, finish, and performance that critical assemblies require, so the washer interchanges reliably where the drawing specifies an MS number. Full material certifications support traceability and spec conformance. Where a drawing calls for an 800 series MS part number, use the certified stainless MS washer rather than a commercial substitute.

Why choose 18-8 stainless 800 series MS flat washers

• Military standard: manufactured to 800-series MS specifications.
• Corrosion resistant: 18-8 stainless resists rust and oxidation.
• Certified conformance: called out by MS part number on drawings.
• Repeatable: consistent dimensions for critical assemblies.

Common applications for 18-8 800 series MS flat washers

• Military vehicles and equipment
• Aerospace and defense assemblies
• Government and contractor programs
• Corrosion-exposed military connections

For related aerospace standards, see NAS aerospace flat washers, and browse every option on the main flat washers category.

18-8 Stainless 800 Series MS Flat Washers FAQ

What does MS stand for?

Military Standard, one of the primary military and aerospace standard families along with AN and NAS.

Why 18-8 stainless for military washers?

18-8 stainless resists corrosion and oxidation, which suits military hardware exposed to weather, salt, and harsh field conditions.

Can I substitute a commercial washer?

MS washers are certified and called out by part number. Substituting a commercial washer usually requires formal engineering disposition.