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39mm Outer Dia., Zero Aperture, Stainless Steel Leaves

Zero Series

Stock #57-596 3-4 days
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Minimum Aperture (mm):
Maximum Aperture (mm):
Outer Diameter (mm):
Anodized Aluminum Alloy, Stainless Steel Leaves
Full Angular Range of Lever (°):
Lever Diameter (mm):
Lever Length (mm):
Lever Position (mm):
Number of Leaves:
Two sets of 7
Operating Temperature (°C):
Pin Thread & Pitch:
M1.4 x 0.30mm
Thickness (mm):

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 240:

Product Family Description

  • Iris Completely Closes
  • Corrosion Resistant Housing
  • High Heat Resistance
  • Burnished Spring Steel and Stainless Spring Steel Leaf Options Available

High Performance Zero Aperture Series Iris Diaphragms provide optimum performance reliability even under the most extreme conditions. High quality materials combined with the highest fabrication guarantee their exceptional performance. Different leaf and aperture diameter options allow these irises to be successfully integrated into a variety of applications including imaging and high temperature environments. High Performance Zero Aperture Series Iris Diaphragms feature housing that is corrosion resistant with a matte finish and black anodized aluminum alloy. Known pin/tab angular deviation allows upfront, accurate assessment of movement requirements. 

For specific OEM application assistance, please contact our Applications Engineering Department

Note: Iris Diaphragm Mounts sold separately. 

Technical Information

Outer Diameter A Maximum Aperture B Minimum Aperture C Thickness D Level Position E Full Angular Range of Lever F Stock No.
94mm 60mm








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