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T-SM31RR - M31.5 x 0.5 Retaining Ring
T-SM31RR - M31.5 x 0.5 Retaining Ring
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T-SM31RR - M31.5 x 0.5 Retaining RingT-SM31RR - M31.5 x 0.5 Retaining Ring

T-SM31RR - M31.5 x 0.5 Retaining Ring

Fosco ConnectSKU: T-SM31RR
Price:
$ 25.00
Silicon Valley Based
Expert Support Since 2001
Fast CA or NY Shipping

T-SM31RR - M31.5 x 0.5 Retaining Ring

Product Drawing

  • Standard Retaining Rings for Optics Ranging from Ø30 mm to Ø1.5"
  • Thread M31.5 x 0.5
  • Thickness 0.08" (2.0 mm) 
  • Compatible Spanner Wrench T-SPW801
  • Clear Aperture Ø1.14" (Ø29.0 mm)
M31.5 x 0.5 Threading
Internal Thread External Thread
Min Major Diameter 31.500 mm Max Major Diameter 31.480 mm
Min Pitch Diameter 31.175 mm Min Major Diameter 31.371 mm
Max Pitch Diameter 31.302 mm Max Pitch Diameter 31.155 mm
Min Minor Diameter
(and 83.3% of Thread)		 30.959 mm Min Pitch Diameter 31.058 mm
Max Minor Diameter
(and 64.9% of Thread)		 31.094 mm Max Minor Diameter 30.938 mm

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