- Home »
- NSN Catalog »
- Fire Control Equipment »
- Optical Sighting And Ranging Equipment »
- NSN 1240-00-864-2936
1240-00-864-2936
Description: Optical Instrument Window
Price Quote
Quality Assurance
We are commited to quality and satisfaction as a certified supplier in the aerospace and military industries.
- Certificate of Conformity
- QC Inspection prior to shipping
- On time delivery
- International Shipping Available
- Friendly service to back every order
Export Restrictions
Any part(s) quoted or sold by MilSpec.parts and re-sold (to a third party) CANNOT be sold to a USA embargoed country, company, entity, or person(s). Depending on the ECCN, these commodities may require export license or exception. Diversion contrary to U.S. law is prohibited. Unless otherwise noted, this sale, order or quote may include Munitions List Items (MLI) or Commerce Controlled List Items (CCLI). MLI/CCLI property is controlled by the US Government and in many cases cannot be transferred (exported, sold or given) to a foreign country, a non-US Citizen/National or a non- Permanent US Resident without a valid State/Commerce Department export authorization. It is the responsibility of (the Purchaser) to determine what the applicable requirements may be, to obtain all necessary authorizations, licenses or approvals and are subject to both review and acceptance by MilSpec.parts. The use, disposition, export and re-export of the property covered or included in this sale, order or quote is subject to the provisions of law referenced in End-Use Certificate DLA form 1822, DEC 2001, including, but not limited to, the Arms Export Control Act (22 USC 2751 et seq.); Export Administration Act of 1979 (50 USC App. 2401 et seq.) as contained under Executive Order 12924; International Traffic in Arms Regulations (22 CFR 120 et seq.); Export Administration Regulations (15 CFR 730 et seq.); Foreign Assets Control Regulations (31 CFR 500 et seq.) and the Espionage Act (18 USC 793 et seq.)
1240-00-864-2936 Properties
-
NSN:1240-00-864-2936
-
Description:Optical Instrument Window
-
Shelf Life:N/A
-
DEMIL:DEMIL/MLI
-
UOM:1 EA
-
Diameter:Between 1.740 inches and 1.745 inches
-
Thickness:Between 0.240 inches and 0.250 inches
-
Surface Finish:Ground and polished
-
Bevel Depth:Between 0.020 inches and 0.030 inches
-
Polished Surface:Both
-
Polished Periphery:Provided
-
Bevel Angle In Deg:Between 42.000 and 48.000
-
Special Features:Element in accord with specification mil-o-13830; spherical power not to exceed 3 fringes, astigmatism 2 fringes; light deviation not to exceed 2 minutes (0.033 deg) of arc; surfaces quali type 80-50; used on periscope and howitzers m109a2 and m109a3
-
Material:Glass, optical, mil-g-174, grade d, type 523-586
-
Material:Glass, optical, mil-g-174, grade d, type 523-586






