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T-SM18RR - 0.750"-40 Retaining Ring for Ø18 mm Lens Mounts
T-SM18RR - 0.750"-40 Retaining Ring for Ø18 mm Lens Mounts
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T-SM18RR - 0.750"-40 Retaining Ring for Ø18 mm Lens MountsT-SM18RR - 0.750"-40 Retaining Ring for Ø18 mm Lens Mounts

T-SM18RR - 0.750"-40 Retaining Ring for Ø18 mm Lens Mounts

Fosco ConnectSKU: T-SM18RR
Price:
$ 18.00
Silicon Valley Based
Expert Support Since 2001
Fast CA or NY Shipping

T-SM18RR - 0.750"-40 Retaining Ring for Ø18 mm Lens Mounts

Product Drawing

  • Standard Retaining Rings for Optics Ranging from Ø13 mm to Ø1"
  • Retaining Rings with RMS (0.800"-36) and C-Mount (1.00"-32) Threads Available
  • Thread 0.750"-40 
  • Thickness 0.08" (2.0 mm)
  • Compatible Spanner Wrench T-SPW801
  • Clear Aperture Clear Aperture Ø0.62" (Ø15.7 mm)
0.750"-40 Threading
Internal Thread External Thread
Min Major Diameter 0.7500" Max Major Diameter 0.7490"
Min Pitch Diameter 0.7338" Min Major Diameter 0.7439"
Max Pitch Diameter 0.7382" Max Pitch Diameter 0.7328"
Min Minor Diameter
(and 83.3% of Thread)		 0.723" Min Pitch Diameter 0.7294"
Max Minor Diameter
(and 64.9% of Thread)		 0.729" Max Minor Diameter 0.7219"

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