National Item Identification Number

00-925-8421
009258421
6650-00-925-8421
6650009258421

National Stock Number

Item Name

SCALE,DIOPTER

Federal Supply Class

6650

Description

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.

Commercial and Government Entity Code (Supplier Data)

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09205

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18876

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Reference Numbers (Part Numbers)

10121198
10121198

Required Categories

MATERIAL
SURFACE TREATMENT
SCALE DIVISION QUANTITY
SCALE UNIT OF MEASURE INSC

Required Description

STEEL, QQ-S-763, CLASS 303, COND A
CHROMATE
8
4,3,2,1,MINUS SIGN/IN SYMBOL FO