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- NSN 6650-00-520-4253
6650-00-520-4253
Description: Optical Instrument Lens
Price Quote
Quality Assurance
We are commited to quality and satisfaction as a certified supplier in the aerospace and military industries.
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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.)
6650-00-520-4253 Properties
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NSN:6650-00-520-4253
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Description:Optical Instrument Lens
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Shelf Life:N/A
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DEMIL:NO
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UOM:--
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Diameter:Between 0.686 inches and 0.689 inches
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Axial Thickness:0.236 inches and 0.024 inches
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Compound Lensaxial Thickness:Between 0.240 inches and 0.272 inches
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Compound Lens Edge Thickness:0.166 inches
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Equivalent Focal Length:1.444 inches
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Back Focal Length:1.281 inches
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Refraction Index:1.5411 and 1.6210
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Abbe Constant:59.900 and 36.200
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Compound Lens Style:Doublet
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Individual Lens Style:Double convex and meniscus diverging
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Element Left Surface Radius:0.793 inches and -0.595 inches
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Element Right Surface Radius:-0.595 inches and -4.220 inches
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Special Features:Reflection reducing treatment on front andback surfaces, jan-m-621
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Material:Glass, optical, mil-g-174, grade c, type 541-599 or glass, optical, mil-g-174, grade c, type 621-362
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Material:Glass, optical, mil-g-174, grade c, type 541-599 or glass, optical, mil-g-174, grade c, type 621-362
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Fsc Application Data:Binocular, m7, m16