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National Stock Number:
5306-00-858-0778
Federal Supply Class:
5306
National Item Identification Number:
008580778
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:
| S6165-20266 | 1EM77 | B & B SPECIALTIES INC | | S6165-20266 | 2T918 | ALCO MACHINE CO INC | | S6165-20266 | 66861 | HARTFORD AIRCRAFT PRODUCTS, INC | | S6165-20266 | 66936 | B. & R. MACHINE & TOOL CORP | | S6165-20266 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| CONCENTRIC HOLE DIAMETER | 0.124 INCHES MINIMUM AND 0.126 INCHES MAXIMUM | | FASTENER LENGTH | 0.406 INCHES NOMINAL | | HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | HOLE CONFIGURATION STYLE | HEXAGON CORNERS | | HOLE DIAMETER | 0.032 INCHES NOMINAL | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 2 | | MATERIAL | STEEL COMP 410 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.346 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF | | WIDTH BETWEEN FLATS | 0.375 INCHES NOMINAL |
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