12266729

Optical element cell

12266729 Description

2B thread class, +2.6797/+2.6855 inches thread pitch diameters, right-hand , 2 45/64-32 thread size, uns screw thread series, internal thread location.

Features

Cell-folding mirror, wide angle objective; item is 3 sided with 3 openings, 2.825 inside dia, 1.750 inside dia, and 1.710 inside dia; includes 4 eqsp threaded holes, 0.138-32unc-2b x .32 dp on 3.250 diameter b.C.; includes 3 eq sp holes, 0.120 diameter drill point 0.036 dp on 2.562 diameter b.C.; includes 4 eq sp threaded holes, 0.138-32unc-2b x .32 dp on 2.062 diameter b.C.; includes 0.128 diameter through to bore, cbore .38 diameter x .13 deep, 0.164-32unc-2b x .25 dp; used on m901

Properties of 12266729

Thread Class:
2b
Thread Pitch Diameters:
+2.6797/+2.6855 inches
Thread Direction:
Right-hand
Thread Size:
2 45/64-32
Screw Thread Series Designator:
Uns
Thread Location:
Internal
Eccentric Construction:
Not provided
Material:
Aluminum alloy, qq-a-601, alloy 356, t6
Material:
Aluminum alloy 356.0
Surface Treatment:
Anodized, mil-a-8625, type 2, class 2
NSN:
1240-01-076-2074
Description:
Cell,optical Element
Cage Code:
19207

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 09/28/2024