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Stainless, Medium Series

Belleville Washer

NFE 25-511 "M"

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Detail & Specs

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Metric Stainless Steel Belleville Washer, "M" Medium Outer Diameter

Ribbed / "Rip Lock" Pattern

Belleville washers have a concave shape to maintain compressed tension. The Rip-Lock pattern on the top surface enhances the locking force and further prevents against loosening due to vibration or pressure.

Belleville washers can be used in tandem, one at the nut end and one at the bolt head end of the fastener connection.

Stainless steel disc spring washers are commonly used in damp environments. They are popular across a wide range of industries: automotive, agriculture, architectural, sanitation, food processing, clean energy, etc.

For any application involving marine (salt water), use A4 / 316 Stainless Steel washers.

Also known as serrated conical, coned-disc, cupped spring lock washer

AFNOR NFE 25-511, "M" Medium Form (Most Common)
French National Standard

Special Order Variations
Additional Materials: A4 / 316 Stainless Steel

Alternative Forms:
DIN 6796 Non-Serrated Conical Spring Washer