8619885

Optical element retainer

8619885 Description

1.469 inches hole diameter, 0.031 inches width, 0.234 inches overall length, 1.640 inches recess diameter, 1.7188 in.-32 ins-3a thread size.

Properties of 8619885

Hole Diameter:
Between 1.469 inches and 1.470 inches
Width:
0.031 inches
Overall Length:
0.234 inches
Hole Or Slot Quantity:
2
Recess Diameter:
Between 1.640 inches and 1.645 inches
Recess Depth:
0.1406 inches
Thread Size:
1.7188 in.-32 ins-3a
Depth:
0.031 inches
Drive Type:
Slotted
Drive Facility Angular Spacing In Deg:
180.0
Internal Annular Serration:
Not provided
Setscrew Notch:
Not provided
Hole Chamfer Angle In Deg:
45.0
Material:
Aluminum alloy, qq-a-267, o-canceled
Material:
Aluminum alloy, qq-a-267, o-canceled
Surface Treatment:
Enamel
Style Designator:
Recessed
Surface Treatment:
Enamel
Fsc Application Data:
Periscope, integrated with fire control equipment
NSN:
1240-00-994-9200
Description:
Retainer,optical Element
Cage Code:
19200

Definition Optical Element Retainer

A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see cell, optical element. Excludes ring, externally threaded.

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Last modified 05/04/2024