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National Stock Number:
5306-00-903-8508
Federal Supply Class:
5306
National Item Identification Number:
009038508
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:
| 12L107-9 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.860 INCHES NOMINAL FIRST HOLE | | CONCENTRIC HOLE DEPTH | 2.580 INCHES NOMINAL | | CONCENTRIC HOLE DIAMETER | 0.531 INCHES NOMINAL | | FASTENER LENGTH | 3.000 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | MATERIAL | STEEL OVERALL | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES MINIMUM FIRST HOLE AND 0.116 INCHES MAXIMUM FIRST HOLE | | SHOULDER DIAMETER | 1.248 INCHES MINIMUM AND 1.250 INCHES MAXIMUM | | SHOULDER LENGTH | 2.540 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.335 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 20 | | WIDTH BETWEEN FLATS | 1.615 INCHES MINIMUM AND 1.628 INCHES MAXIMUM | | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
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