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		                             National Stock Number: 5306-01-311-0925
  Federal Supply Class: 5306
  National Item Identification Number: 013110925
  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:
 | 75D471002-2019 | 18463 | CARDEN MACHINE SHOP, INC. |  | 75D471002-2019 | 76301 | THE BOEING COMPANY |   
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  Techincal Specification:
 | THREAD SERIES DESIGNATOR | UNJF |  | NOMINAL THREAD DIAMETER | 0.375 INCHES |  | THREAD QUANTITY PER INCH | 24 |  | THREAD CLASS | 3A |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD LENGTH | 0.750 INCHES NOMINAL |  | FASTENER LENGTH | 1.750 INCHES NOMINAL |  | MATERIAL | COPPER ALLOY 642 OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4631 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |  | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |  | CONCENTRIC HOLE DIAMETER | 0.188 INCHES NOMINAL |  | HEAD STYLE | BUTTON |  | HEAD DIAMETER | 0.570 INCHES NOMINAL |  | HEAD HEIGHT | 0.150 INCHES NOMINAL |  | SPECIAL FEATURES | SLOT IN POINT 0.040 IN. DIA; 0.070 IN. LG |   
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