789PC2

Optical element cell

789PC2 Description

2b thread class, +1.8547/+1.8600 inches thread pitch diameters, right-hand , 0.300 inches thread length, 1.836 inches overall length.

Properties of 789PC2

Thread Class:
2b and 2a
Thread Pitch Diameters:
+1.8547/+1.8600 inches and +2.0679/+2.0721 inches
Thread Pitch Diameters:
+1.8547 to 1.8600 inches and +2.0679 to 2.0721 inches
Thread Direction:
Right-hand and right-hand
Thread Length:
0.300 inches and 0.376 inches
Overall Length:
1.836 inches
Thread Size:
1 7/8-32 and 2 5/64-32
Overall Diameter:
2.250 inches
Screw Thread Series Designator:
Uns and uns
Drive Type:
Drilled hole
Thread Location:
Internal and external
Eccentric Construction:
Provided
Cell Eccentricity From Geometric Axis:
0.001 inches
Chamfer Location:
Threaded end
Element Securing Method:
External thread
Material:
Aluminum alloy
Material:
Aluminum alloy
Surface Treatment:
Anodized, mil-a-8625, type 2
NSN:
1240-00-210-4393
Description:
Cell,optical Element
Cage Code:
78039

Definition Optical Element Cell

A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. Includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.

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Last modified 11/02/2024