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National Stock Number:
5306-00-078-0144
Federal Supply Class:
5306
National Item Identification Number:
000780144
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:
| 10107390 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| FASTENER LENGTH | 1.375 INCHES NOMINAL | | FEATURES PROVIDED | FINISHED HEAD | | HEAD HEIGHT | 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | INTERNAL THREAD CLASS | 2B CONCENTRIC HOLE | | INTERNAL THREAD DIRECTION | RIGHT-HAND CONCENTRIC HOLE | | INTERNAL THREAD LENGTH | 0.312 INCHES NOMINAL CONCENTRIC HOLE | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | NOMINAL THREAD SIZE | 0.138 INCHES CONCENTRIC HOLE | | SPECIAL FEATURES | PELLET TYPE LOCKING ELEMENT IN THREADS | | WIDTH BETWEEN FLATS | 1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM | | STYLE DESIGNATOR | CONCENTRIC HOLE THREADED | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.340 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 10 | | THREAD SERIES DESIGNATOR | UNC | | THREAD SERIES | UNC CONCENTRIC HOLE | | THREADS PER INCH | 32 CONCENTRIC HOLE |
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