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National Stock Number:
5306-00-008-8971
Federal Supply Class:
5306
National Item Identification Number:
000088971
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:
| A51M42537-11 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51M42537-11 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | A51M42537-11 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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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 | 0.334 INCHES MAXIMUM | | FASTENER LENGTH | 1.957 INCHES MINIMUM AND | | 1.967 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | GM1010,FSCM 26512 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | STYLE DESIGNATOR | COUNTERBORE UNTHREADED | | SHOULDER DIAMETER | 0.7476 INCHES MINIMUM AND | | 0.7482 INCHES MAXIMUM | | SHOULDER LENGTH | 1.519 INCHES MINIMUM AND | | 1.529 INCHES MAXIMUM | | CONCENTRIC HOLE DEPTH | 1.480 INCHES NOMINAL | | COUNTERBORE DIAMETER | 0.740 INCHES NOMINAL | | COUNTERBORE DEPTH | 0.110 INCHES NOMINAL | | CONCENTRIC HOLE DIAMETER | 0.196 INCHES MINIMUM AND | | 0.201 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.188 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.865 INCHES MINIMUM AND | | 0.877 INCHES MAXIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.786 INCHES MINIMUM AND | | 1.796 INCHES MAXIMUM FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.110 INCHES MINIMUM AND | | 0.115 INCHES MAXIMUM FIRST HOLE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 26512 | | DESIGN CONTROL REFERENCE | A51M42537-11 |
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