Optical Element Cell

Model / MPN: 8213381 | NSN: 1240-00-131-6286

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.

Product Details

NATO Stock Number

1240-00-131-6286

Sold in multiples of

DEMIL

Thread Class

2b and 2a

Thread Pitch Diameters

+4.1672/+4.1732 inches and +2.5366/+2.5409 inches

Thread Pitch Diameters

+4.1672 to 4.1732 inches and +2.5366 to 2.5409 inches

Thread Direction

Right-hand and right-hand

Thread Length

0.280 inches and 0.245 inches

Overall Length

Between 7.640 inches and 7.650 inches

Thread Size

4-3/16 in.-32 and 2-9/16 in.-32

Overall Diameter

Between 4.300 inches and 4.310 inches

Screw Thread Series Designator

Uns and uns

Thread Location

Internal and external

Eccentric Construction

Not provided

Element Securing Method

Screw

Material

Aluminum alloy, qq-a-601, alloy 355, t6 and aluminum alloy, qq-a-601, alloy 356, t6

Material

Aluminum alloy 355.0 and aluminum alloy 356.0

Material Specification

Qq-a-601, alloy 355, t6 federal specification 1st material response and qq-a-601, alloy 356, t6 federal specification 2nd material response

Surface Treatment

Anodize

Surface Treatment

Anodized, mil-a-8625, type 1, class 2

Fsc Application Data

Periscope, tank

82133 Series Parts

Pricing and Availability

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Optical Element Cell

Pricing and Availability

Certified Quality Assurance

8213381 Cross Reference