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		                        | National Stock Number:
 1660-00-705-8319
 
 Federal Supply Class:
 1660
 
 National Item Identification Number:
 007058319
 
 Description:
 GRILLE,METAL
 
 Detail:
 A METAL FRAME ENCLOSING A METAL CORE WHICH IS CONSTRUCTED OF PERFORATED SHEET METAL, BARS, CORE MATERIAL, OR THE LIKE. IT IS USED TO FORM AN OPENWORK BARRIER OR SCREEN TO ALLOW THE PASSAGE OF A MAXIMUM QUANTITY OF AIR AND/OR LIGHT, BUT EXCLUDING THE PASSAGE OF FOREIGN OBJECTS. EXCLUDES GUARD, FAN IMPELLER.
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 Manufacturer Information:
 
 | 537999 | 0YWF1 | FALCON AEROSPACE INC |  | 537999 | 73030 | HAMILTON SUNDSTRAND CORPORATION |  | 537999 | 8X044 | DERCO AEROSPACE, INC. |  | 537999 | 91139 | WAYNE WIRE CLOTH PRODUCTS, INC | 
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 Techincal Specification:
 
 | CORE TYPE | PERFORATED METAL |  | FRAME OPENING DIAMETER | 0.250 INCHES MINIMUM |  | FRAME OVERALL DIAMETER | 0.344 INCHES MINIMUM AND 0.345 INCHES MAXIMUM |  | FRAME OVERALL THICKNESS | 0.025 INCHES MINIMUM AND 0.045 INCHES MAXIMUM |  | FRAME TYPE | ROUND |  | PERFORATION SHAPE | SQUARE |  | SHAPE | ROUND | 
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