Compare Model Drawings, CAD & Specs Thread Type Inside Diameter Material Availability Price
Retaining Ring, 4.7 mm ID, 0.281-32 Thread
$6.25
In Stock
0.281-32 4.7 mm Delrin
In Stock
Retaining Ring, 10.1 mm ID, 0.546-32 Thread
$6.25
In Stock
0.546-32 10.1 mm Delrin
In Stock
Retaining Ring, 15.9 mm ID, 0.786-32 Thread
$6.25
In Stock
0.786-32 15.9 mm Delrin
In Stock
Retaining Ring, 16.3 mm ID, 0.875-20 Thread
$6.25
In Stock
0.875-20 16.3 mm Delrin
In Stock
Retaining Ring, 19.2 mm ID, 1.063-20 Thread
$5.25
In Stock
1.063-20 19.2 mm Delrin
In Stock
Retaining Ring, 22.9 mm ID, 1.063-20 Thread
$7.50
In Stock
1.063-20 22.9 mm Aluminum
In Stock
Retaining Ring, 26.9 mm ID, 1.438-20 Thread
$6.25
In Stock
1.438-20 26.9 mm Delrin
In Stock
Retaining Ring, 30.0 mm ID, 1.563-20 Thread
$6.25
In Stock
1.563-20 30.0 mm Delrin
In Stock
Retainer Ring, 42.9 mm ID, 2.063-20 Thread
$6.25
In Stock
2.063-20 42.9 mm Delrin
In Stock
Retaining Ring, 10.9 mm ID, 0.535-40 Thread
$5.25
In Stock
0.535-40 10.9 mm Aluminum
In Stock
Retaining Ring, 22.9 mm ID, 1.035-40 Thread
$6.25
In Stock
1.035-40 22.9 mm Aluminum
In Stock
Retaining Ring, 28.0 mm, M30.5 X 0.5 Thread
$10
In Stock
M30.5 X 0.5 28.0 mm Aluminum
In Stock
Retaining Ring, 35.6 mm ID, .535-40 Thread
$9
In Stock
1.535‐40 35.6 mm Aluminum
In Stock
Retaining Ring, 47.5 mm ID, 2.035-40 Thread
$8.50
In Stock
2.035-40 47.5 mm Aluminum
In Stock
Retaining Ring, 71.1 mm ID, 3.035-40 Thread
$10.50
In Stock
3.035‐40 71.1 mm Aluminum
In Stock

Features

Retaining Rings for all Standard Sized Mounts

Retaining rings securely hold optics in place with even force around the perimeter. They are offered for standard sized optics between 0.5 in. and 2.0 in. (12.7 mm and 50.8 mm) in diameter.