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		                        | National Stock Number:
 4820-01-064-6979
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 010646979
 
 Description:
 VALVE,CHECK
 
 Detail:
 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
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 Manufacturer Information:
 
 | 12C192-2 | 82829 | ALLEN AIRCRAFT PRODUCTS INC |  | 2S6152 | 99240 | CRISSAIR INC |  | 68B580174-102 | 76301 | THE BOEING COMPANY |  | 9506-1-2 | 81833 | AEROCONTROLEX GROUP, INC. |  | 9506-2-1 | 81833 | AEROCONTROLEX GROUP, INC. | 
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 Techincal Specification:
 
 | MATERIAL | ALUMINUM ALLOY 2024 BODY |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODY |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 II MIL SPEC 1ST TREATMENT RESPONSE |  | SUPPLEMENTARY FEATURES | APPLICABLE TO F-15 AIRCRAFT; GRAVITY FUEL,TE TANK | 
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