Product Details | OPTICAL FLAT

5210-00-685-5545 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: MIL026901CLASS1SIZE11, 5210-00-685-5545, 00-685-5545, 5210006855545, 006855545

Measuring Tools | Measuring Tools, Craftsmen's

Supply Group (FSG) NSN Assign. NIIN
52 01 JAN 1963 00-685-5545

Cross Reference | NSN 5210-00-685-5545

Part Number Cage Code Manufacturer
MIL026901CLASS1SIZE11 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 5210-00-685-5545

Characteristic Specifications
DESIGN TYPE MASTER DOUBLE
MATERIAL QUARTZ, FUSED
WORKING SURFACE FLATNESS ACCURACY 0.00000200 INCHES NOMINAL
DIAMETER 4.000 INCHES NOMINAL
THICKNESS 0.750 INCHES NOMINAL
CASE PROVIDED
NONDEFINITIVE SPEC/STD DATA 1 CLASS AND 11 SIZE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL026901CLASS1SIZE11

Restrictions/Controls & Freight Information | NSN 5210-00-685-5545

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:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 713 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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

Management | NSN 5210-00-685-5545

Category Code Description
Price ValidationV The current standard price has been validated.
  • The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range.
  • The item was procured under open competition and under the competitive arena the price is considered fair and reasonable.
  • ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Budget CodeY variousO & M:AF centrally procured equipment items. They are separate, primary end items (other than the weapon system itself) needed by a user to perform an assigned mission. They are nonexpendable items (ERRCD NF or ND) which are not consumed in use, and they do not lose their original identity during periods of use by incorporation into, or attachment to another assembly.
Source of SupplyFLZWarner Robins Air Logistics Center
Robins AFB, GA 31098-5609
AgencyDFDepartment of the Air Force
Service OrganizationLLead Service - 22 (Repairable)
ReparabilityUAF Equipment Management System (AFEMS)
Acquisition Advice CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each