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		                             National Stock Number: 4820-01-098-9523
  Federal Supply Class: 4820
  National Item Identification Number: 010989523
  Description: VALVE,ANTI BACK DRAFT
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  Manufacturer Information:
 | 556-100-L1.0-S1.0-RFL | 15939 | STRATOTECH LLC |  | 6000159-3 | 29381 | GICHNER SYSTEMS GROUP, INC. |   
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  Techincal Specification:
 | GENERAL CHARACTERISTICS ITEM DESCRIPTION | TEMPERATURE RANGE M65 DEG F TO 150 DEG F; LOUVERED COVER LIGHT-TIGHT BUT NOT AIRTIGHT; ADJUSTABLE DIFFERENTIAL PRESSURE |   
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