278574PC7

Optical element retaining ring

278574PC7 Description

Right-hand , 0.250 inches thread length, 0.312 inches overall length, 3.268 inches outside diameter, 3.140 inches aperture diameter.

Properties of 278574PC7

Thread Direction:
Right-hand
Thread Length:
0.250 inches
Overall Length:
0.312 inches
Outside Diameter:
3.268 inches
Aperture Diameter:
3.140 inches
End Application:
Rangefinder mk48
Thread Location:
External
Internal Flange Thickness:
0.062 inches
Knurled Periphery:
Provided
Material:
Brass
Material:
Copper alloy
NSN:
1240-00-155-1464
Description:
Ring,retaining,optical Element
Cage Code:
10001

Definition Optical Element Retaining Ring

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

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Last modified 05/02/2024