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		                        | National Stock Number:
 5306-01-367-6370
 
 Federal Supply Class:
 5306
 
 National Item Identification Number:
 013676370
 
 Description:
 BOLT,INTERNALLY RELIEVED BODY
 
 Detail:
 An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see BOLT, FLUID PASSAGE.
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 Manufacturer Information:
 
 | 717751240-019 | 04939 | LOCKHEED MARTIN CORPORATION | 
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 Techincal Specification:
 
 | CONCENTRIC HOLE DEPTH | 0.500 INCHES NOMINAL |  | FASTENER LENGTH | 1.320 INCHES NOMINAL |  | HEAD HEIGHT | 0.380 INCHES NOMINAL |  | HEAD STYLE | ROUND W/WRENCH FLATS |  | NOMINAL THREAD DIAMETER | 0.562 INCHES |  | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |  | THREAD CLASS | 2A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 1.200 INCHES NOMINAL |  | THREAD QUANTITY PER INCH | 18 |  | THREAD SERIES DESIGNATOR | UNF |  | WIDTH BETWEEN FLATS | 0.880 INCHES NOMINAL | 
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