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National Stock Number:
5306-00-638-7145
Federal Supply Class:
5306
National Item Identification Number:
006387145
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:
| 8164411 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.750 INCHES NOMINAL | | EXTENDED WASHER THICKNESS | 0.093 INCHES NOMINAL | | FASTENER LENGTH | 0.844 INCHES NOMINAL | | HARDNESS RATING | 23.0 ROCKWELL C NOMINAL OVERALL | | HEAD HEIGHT | 0.250 INCHES NOMINAL | | INTERNAL THREAD LENGTH | 0.312 INCHES NOMINAL CONCENTRIC HOLE | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4140 OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | NOMINAL THREAD SIZE | 0.164 INCHES CONCENTRIC HOLE | | WIDTH BETWEEN FLATS | 0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM | | STYLE DESIGNATOR | CONCENTRIC HOLE THREADED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.500 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 24 | | THREAD SERIES DESIGNATOR | UNF | | THREAD SERIES | UNC CONCENTRIC HOLE | | THREADS PER INCH | 32 CONCENTRIC HOLE |
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