8615895

Optical element retainer

8615895 Description

1.948 inches shoulder diameter, 0.312 inches shoulder length, 1.690 inches hole diameter, 0.060 inches width, 0.678 inches overall length.

Features

Shoulder projecting from flange end, 1.771 in. Max. Shoulder dia. And 0.055 in. Min. Shoulder lg.

Properties of 8615895

Shoulder Diameter:
Between 1.948 inches and 1.953 inches
Shoulder Length:
0.312 inches
Hole Diameter:
Between 1.690 inches and 1.700 inches
Width:
Between 0.060 inches and 0.070 inches
Overall Length:
Between 0.678 inches and 0.698 inches
Hole Or Slot Quantity:
2
Depth:
Between 0.060 inches and 0.070 inches
Drive Type:
Slotted
Drive Facility Angular Spacing In Deg:
180.0
Internal Annular Serration:
Not provided
Setscrew Notch:
Not provided
Flange Thread Size:
2.000 in.-32uns-2a
Material:
Steel, qq-s-764, type 303, cond a-canceled or steel, qq-s-764, type 303se, cond a-canceled
Material:
Steel comp 303 or steel comp 303se
Material Specification:
Qq-s-764, type 303, cond a-canceled federal specification 1st material response and qq-s-764, type 303se, cond a-canceled federal specification 2nd material response
Surface Treatment:
Oxide
Style Designator:
Shouldered
Surface Treatment:
Black oxide, mil-c-13924, class 4
Fsc Application Data:
Telescope, elbow m118
NSN:
1240-00-115-4456
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 05/01/2024