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National Stock Number: 5306-00-128-1509
Federal Supply Class: 5306
National Item Identification Number: 001281509
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:
10215758 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
THREAD SERIES DESIGNATOR | UNF | NOMINAL THREAD DIAMETER | 0.750 INCHES | THREAD QUANTITY PER INCH | 16 | THREAD CLASS | 2A | THREAD DIRECTION | RIGHT-HAND | THREAD LENGTH | 0.361 INCHES MINIMUM | FASTENER LENGTH | 0.561 INCHES NOMINAL | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | SURFACE TREATMENT | ANODIZE OVERALL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | STYLE DESIGNATOR | COUNTERBORE UNTHREADED | CONCENTRIC HOLE DEPTH | 0.900 INCHES NOMINAL | COUNTERBORE DIAMETER | 0.402 INCHES MINIMUM AND | | 0.410 INCHES MAXIMUM | COUNTERBORE DEPTH | 0.350 INCHES NOMINAL | CONCENTRIC HOLE DIAMETER | 0.164 INCHES MINIMUM AND | | 0.171 INCHES MAXIMUM | HEAD STYLE | HEXAGON EXTENDED WASHER | HEAD HEIGHT | 0.439 INCHES NOMINAL | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL | EXTENDED WASHER DIAMETER | 1.000 INCHES NOMINAL | EXTENDED WASHER THICKNESS | 0.150 INCHES NOMINAL | SPECIAL FEATURES | EXTERNALLY RELIEVED TO 0.650 IN. 1ST DIA FROM HEAD BY 0.200 IN. LARGEST BEARING SURFACE OF HEAD TO END OF 1ST DIA |
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