The practical difference in buyer intent
Searches for DIN 2093 disc springs often come from engineers or buyers who care about load at deflection, series or parallel stacking, fatigue, material choice and replacement geometry.
Searches for DIN 6796 washers more often point to bolted joints where the buyer wants a heavy-duty washer that can support preload better than ordinary spring washers.
When DIN 2093 is the better starting point
Use DIN 2093 as the starting point when the washer is acting as a spring element with a defined force-travel curve. This is common in actuators, clutches, overload devices, valve assemblies, machinery and custom spring stacks.
The RFQ should include outside diameter, inside diameter, thickness, free height, target load, working deflection, stack arrangement and material.
- Defined load at 25%, 50% or 75% deflection.
- Series and parallel stack behavior.
- Material upgrade from spring steel to stainless or nickel alloy.
- Fatigue, relaxation and inspection requirements.
When DIN 6796 may be the better starting point
DIN 6796 is usually reviewed around bolt size, washer size, strength class, surface finish and fastening environment. It is a purchasing-friendly path when the application is primarily a bolted joint rather than a tuned spring stack.
For severe heat, corrosion, vibration or leakage-sensitive joints, the buyer should still share service conditions so material and preload margin can be reviewed.
How to avoid quoting the wrong standard
The simplest way to avoid confusion is to describe the job of the washer. If the part must deliver a target force through measurable travel, begin with DIN 2093. If the part supports a fastener and the bolt standard drives the selection, begin with DIN 6796.
If the project is a flange, valve or high-risk joint, send the application data anyway. The correct choice may depend on load window, installation height and material risk rather than the standard name alone.
Frequently Asked Questions
Are DIN 2093 and DIN 6796 interchangeable?
Not automatically. They may look related, but the selection logic is different. DIN 2093 is usually reviewed as a disc spring, while DIN 6796 is usually reviewed as a bolting washer.
Which standard should I mention in an RFQ?
Mention the known standard if you have it, but also describe the function, target load, working deflection, bolt size, installation space, material and service conditions.
Need FeTech to review your disc spring application?
Send the drawing, stack envelope, load target, temperature, media and quantity. Our team can check material direction, stack logic and quotation readiness.
- DIN 2093 replacement or custom geometry
- Valve, flange, actuator and severe-service stacks
- Material review for stainless, Inconel, Hastelloy, titanium or heat-resistant steel
Final geometry, fatigue life, K4 source, friction and support-face conditions still require engineering confirmation.