NSN 1240-00-088-6757

Part Details | DIOPTER SCALE


1240-00-088-6757 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.

Alternate Parts: 8619884, 8619884, 1240-00-088-6757, 00-088-6757, 1240000886757, 000886757

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-088-675721868 ( SCALE, DIOPTER )
REFERENCE DRAWINGS & PICTURES

Cross Reference | NSN 1240-00-088-6757
Part Number Cage Code Manufacturer
861988411934SEILER INSTRUMENT AND MANUFACTURINGCOMPANY, INCORPORATED
861988419200US ARMY ARDEC RDECOM

Technical Data | NSN 1240-00-088-6757
Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024
MATERIAL DOCUMENT AND CLASSIFICATIONWW-T-785, TYPE 1, T3-CANCELED FED SPEC SINGLE MATERIAL RESPONSE
SURFACE TREATMENT ANODIZE
SCALE DIVISION QUANTITY5
SCALE UNIT OF MEASURE INSCRIPTION2,1,MINUS SIGN/IN SYMBOL FORM/,0,PLUS SIGN/IN SYMBOL FORM/,1,2
INSCRIPTION COLOR WHITE
OVERALL OUTSIDE DIAMETER2.270 INCHES NOMINAL
INSIDE DIAMETER1.812 INCHES NOMINAL
OVERALL HEIGHT0.488 INCHES NOMINAL
MOUNTING CONFIGURATION1 SETSCREW
FSC APPLICATION DATAPERISCOPE,INTEGRATED WITH FIRE CONTROL EQUIPMENT