Product Details | OPTICAL FLAT

5210-01-204-4081 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: 2306121, 5210-01-204-4081, 01-204-4081, 5210012044081, 012044081

Measuring Tools | Measuring Tools, Craftsmen's

Supply Group (FSG) NSN Assign. NIIN
52 26 MAR 1985 01-204-4081

Cross Reference | NSN 5210-01-204-4081

Part Number Cage Code Manufacturer
2306121 22380 DRS PHOTRONICS, INC. DBA DRS PHOTRONICS, INC.
2306121 54089 DRS C3 & AVIATION COMPANY

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Technical Data | NSN 5210-01-204-4081

Characteristic Specifications
III END ITEM IDENTIFICATION 4920-01-198-0052
MANUFACTURERS CODE 22380
DESIGN CONTROL REFERENCE 2306121

Restrictions/Controls & Freight Information | NSN 5210-01-204-4081

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:NThe item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input).
Category Code Description
NMF Description 058110 OPTICAL GOODS OR INSTRUMENTS NOI
Less than car load rating D 200
Less than truck load rating D 200.0
Water commodity Code 744 unknown
Originating Activity Code BD U.S. Army Aviation and Missile Command
Redstone Arsenal, AL 35898-5230
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity
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 5210-01-204-4081

Category Code Description
Materiel Category and Inventory ManagerH Aircraft, Air Materiel
Appropriation and Budget Activity2 Stock Fund Secondary Items
Management Inventory Segment2 NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic CodeF Other Missile Categories
Weapons Systems/End Item or Homogeneous GroupFPAdvanced Attack Helicopter (AAH) U.S. Army Missile Command (MICOM)-Managed Sub system
Accounting Requirements CodeX Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of SupplyB17US Army Aviation and Missile Command (Air)
ATTN: AMSMI-LC-MM-C
Redstone Arsenal, AL 35898-5230
AgencyDADepartment of the Army
Service OrganizationAU.S. Army
ReparabilityZThis is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each