Product Details | OPTICAL INSTRUMENT WINDOW

1240-00-904-4572 A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.20212400038Optical Sighting and Ranging Equipment66500063Optical Instruments, Test Equipment, Components and Accessories

Part Alternates: 8215997, 1240-00-904-4572, 00-904-4572, 1240009044572, 009044572

Fire Control Equipment | Optical Sighting and Ranging Equipment

Supply Group (FSG) NSN Assign. NIIN
12 01 JAN 1960 00-904-4572

Cross Reference | NSN 1240-00-904-4572

Part Number Cage Code Manufacturer
8215997 14001 GRAYCO OPTICAL CORP
8215997 19200 US ARMY ARDEC RDECOM

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Technical Data | NSN 1240-00-904-4572

Characteristic Specifications
MATERIAL GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE B
POLISHED SURFACE BOTH
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
WIDTH 86.200 MILLIMETERS NOMINAL
LENGTH 172.200 MILLIMETERS NOMINAL
THICKNESS 7.910 MILLIMETERS NOMINAL
BEVEL ANGLE IN DEG 30.000 NOMINAL
BEVEL DEPTH 3.090 MILLIMETERS NOMINAL
III FSC APPLICATION DATA PERISCOPE

Restrictions/Controls & Freight Information | NSN 1240-00-904-4572

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:DMunitions List Item or Commerce Control List Item. Demilitarization required. Total destruction of the item and components so as to preclude restoration or repair to a usable condition by melting, cutting, tearing, scratching, crushing, breaking, punching, neutralizing, etc. (As an alternate, burial or deep water dumping may be used when coordinated with the DoD Demilitarization Program Office.)
Controlled Inventory Item Code:7NON-SENSITIVE (SRC-N/A) - UNCLASSIFIED AA&E: OR ITEMS ASSIGNED A DEMILITARIZATION CODE OTHER THAN A, B, Q, OR P FOR WHICH ANOTHER CIIC IS INAPPROPRIATE. (NOTE: THE LOSS, THEFT, UNLAWFUL DISPOSITION, AND/OR RECOVERY OF AN ITEM WITH CIIC 7 WILL BE INVESTIGATED IN ACCORDANCE WITH DOD-4000-25-2-M AND DOD 7200.14-R, VOLUME 12, CHAPTER 7).
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information