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National Stock Number:
5306-00-063-9148
Federal Supply Class:
5306
National Item Identification Number:
000639148
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:
| 128CM12245-3 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 128CM12245-3 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.572 INCHES MINIMUM | | FASTENER LENGTH | 3.932 INCHES MINIMUM AND | | 3.962 INCHES MAXIMUM | | MATERIAL | STEEL COMP E4340 OR | | STEEL COMP 4340 OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | | STYLE DESIGNATOR | COUNTERBORE UNTHREADED | | CONCENTRIC HOLE DIAMETER | 0.373 INCHES MINIMUM AND | | 0.380 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.375 INCHES MINIMUM AND | | 0.390 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.052 INCHES MINIMUM AND | | 1.064 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.834 INCHES NOMINAL FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES MINIMUM AND | | 0.151 INCHES MAXIMUM FIRST HOLE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 79RG9 | | DESIGN CONTROL REFERENCE | 128CM12245-3 |
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