Product Details | OPTICAL FLAT

5210-01-161-1950 A flat, transparent piece of glass, generally of fused quartz, with one or both principal surfaces polished to within a few millionths of an inch of a true plane. It is used in conjunction with a monochromatic light source to measure the flatness of precision finished surfaces, and to determine the distance and parallelism between precision finished surfaces by comparison with known standards. In operation the flat is superimposed, reference surface downward, on the parts under test and when illuminated by monochromatic light the rays reflected from the reference surface are either reinforced or neutralized by the rays reflected from the surface under test producing interference bands which reveal any variations in the thickness of the film of air between surface under test and the flat. Excludes optical parallels.

Part Alternates: D61710Q1D, D617-10-Q-1-D, 5210-01-161-1950, 01-161-1950, 5210011611950, 011611950

Measuring Tools | Measuring Tools, Craftsmen's

Supply Group (FSG) NSN Assign. NIIN
52 02 SEP 1983 01-161-1950

Cross Reference | NSN 5210-01-161-1950

Part Number Cage Code Manufacturer
D617-10-Q-1-D 91141 DAVIDSON OPTRONICS INC.

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Technical Data | NSN 5210-01-161-1950

Characteristic Specifications
DESIGN TYPE REFERENCE DOUBLE
MATERIAL QUARTZ, FUSED
WORKING SURFACE FLATNESS ACCURACY 0.00000100 INCHES NOMINAL
DIAMETER 10.000 INCHES NOMINAL
THICKNESS 1.750 INCHES MINIMUM AND 2.000 INCHES MAXIMUM
CASE PROVIDED

Restrictions/Controls & Freight Information | NSN 5210-01-161-1950

Category Code Description
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:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:AItem does not contain precious metal
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
NMF Description 058110 OPTICAL GOODS OR INSTRUMENTS NOI
Less than car load rating
Less than truck load rating D 200.0
Water commodity Code 744 unknown
Originating Activity Code TG Warner-Robins Air Logistics Center
Robins AFB, GA 31098-5609
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity M Medical supplies, equipment, samples records, etc.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable