Home / MS parts / NSN 1240-00-171-7898
NSN 1240-00-171-7898  ·  NIIN 001717898  ·  FSC 1240
NO DASHES 1240001717898
In Stock

WINDOW,OPTICAL INSTRUMENT

Optical Sighting and Ranging Equipment

Technical characteristics

8 rows

Straight from the federal item record. Entries the record leaves empty are shown empty — nothing is filled in on its behalf.

Technical characteristics from the federal item record
MRCRequirementValue
ABMZDIAMETERMILLIMETERS MINIMUM 24.800 AND MILLIMETERS MAXIMUM 25.000
ABNMTHICKNESSMILLIMETERS NOMINAL 4.000
BMMXREFRACTION INDEXNOMINAL 1.5171
BMSGPOLISHED SURFACEBOTH
BMSHDISPERSIONANGSTROMS NOMINAL 64.5
BMSKREFLECTION REDUCING SURFACEBOTH
MATTMATERIALLOCATION NOT OTHERWISE SPECIFIED GLASS OPTICAL
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONLOCATION NOT OTHERWISE SPECIFIED MIL SPEC SINGLE MATERIAL RESPONSE JAN-G-174, TYE 517-645, GRADE A