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National Stock Number: 5306-00-006-4599
Federal Supply Class: 5306
National Item Identification Number: 000064599
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:
A51C43592-19 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | A51C43592-19 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION | A51C43592-19 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
SHOULDER DIAMETER | 0.4995 INCHES MINIMUM AND | | 0.5000 INCHES MAXIMUM | SHOULDER LENGTH | 1.737 INCHES MINIMUM AND | | 1.747 INCHES MAXIMUM | CONCENTRIC HOLE DEPTH | 1.620 INCHES NOMINAL | CONCENTRIC HOLE DIAMETER | 0.249 INCHES MINIMUM AND | | 0.255 INCHES MAXIMUM | HEAD STYLE | HEXAGON | HEAD HEIGHT | 0.110 INCHES MINIMUM AND | | 0.150 INCHES MAXIMUM | WIDTH BETWEEN FLATS | 0.740 INCHES MINIMUM AND | | 0.752 INCHES MAXIMUM | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.968 INCHES MINIMUM AND | | 1.978 INCHES MAXIMUM FIRST HOLE | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM AND | | 0.116 INCHES MAXIMUM FIRST HOLE | TEST DATA DOCUMENT | 81349-MIL-I6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 61174 | DESIGN CONTROL REFERENCE | A51C43592-19 | THREAD SERIES DESIGNATOR | UNJF | NOMINAL THREAD DIAMETER | 0.375 INCHES | THREAD QUANTITY PER INCH | 24 | THREAD CLASS | 3A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.247 INCHES MAXIMUM | FASTENER LENGTH | 2.088 INCHES MINIMUM AND | | 2.098 INCHES MAXIMUM | MATERIAL | STEEL COMP 410 OVERALL | SURFACE TREATMENT | PASSIVATE OVERALL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND | | 45.0 ROCKWELL C MAXIMUM OVERALL | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
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