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National Stock Number:
5306-00-335-4734
Federal Supply Class:
5306
National Item Identification Number:
003354734
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:
| 8017148 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| CONCENTRIC HOLE DIAMETER | 0.438 INCHES NOMINAL | | COUNTERBORE DIAMETER | 0.563 INCHES NOMINAL | | FASTENER LENGTH | 1.250 INCHES NOMINAL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | INTERNAL THREAD CLASS | 2B COUNTERBORE | | MATERIAL | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1110 OR STEEL COMP 1115 OR STEEL COMP 1116 OR STEEL COMP 1117 OR STEEL COMP 1118 OVERALL | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | STYLE DESIGNATOR | COUNTERBORE THREADED | | SPECIAL FEATURES | SECOND COUNTERBORE ON SHANK END 0.562 IN. DIA THREADED 0.250-18 NPT | | WIDTH BETWEEN FLATS | 1.000 INCHES NOMINAL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM A576 ASSN STD 1ST TREATMENT RESPONSE OR ASTM A108 ASSN STD 2ND TREATMENT RESPONSE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD LENGTH | 1.062 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD SERIES | UNC COUNTERBORE | | THREAD QUANTITY PER INCH | 16 |
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