Diopter Scale

Model / MPN: 8574787 | NSN: 1240-00-610-7756

A graduated scale, usually cylindrical in shape, attached to, or forming a part of, the focusing nut or knob of the eyepiece of an optical instrument. It is read in conjunction with a line or dart indicator to measure the change in refracting power of the eyepiece, in diopters, and introduces correction to compensate for the eyesight variation of the observer. It may have a knurled periphery and/or teeth on the inside diameter.

Product Details

NATO Stock Number

1240-00-610-7756

Sold in multiples of

1 EA

DEMIL

DEMIL/MLI

Inside Diameter

3.010 inches

Overall Height

3.140 inches

Scale Division Quantity

Overall Outside Diameter

3.312 inches

Inscription Color

Black

Mounting Configuration

W thd holes, no. 4/0.112 in./-40 nc-2b, equally spaced

Scale Unit Of Measure Inscription

4, 3, 2, 1, minus sign/in symbol form/, 0, plus sign/in symbol form/, 1, 2, 3, 4

Material

Steel, qq-s-763, class 6, type c

Material

Steel comp 416

Material Specification

Qq-s-763, class 6, type c federal specification single material response

Fsc Application Data

Telescope, m10, /t172/, integratedwith fire control equipment

85747 Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE7M118T0694	Scale, Diopter	14	EA	10/23/2017
SPE7M119T8911	Scale, Diopter	34	EA	03/18/2019

Pricing and Availability

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8574787 Cross Reference

1240006107756