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National Stock Number:
5306-01-478-2957
Federal Supply Class:
5306
National Item Identification Number:
014782957
Description:
BOLT,CLOSE TOLERANCE
Detail:
An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see BOLT, SHEAR. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see BOLT, MACHINE.
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Manufacturer Information:
| 109453-4-27 | 0PTK6 | SPS TECHNOLOGIES INC | | 109453-4-27 | 56878 | SPS TECHNOLOGIES, LLC | | AIC753-4-27 | 06725 | SPS TECHNOLOGIES, LLC | | BM17019-4-27 | 17446 | HUCK INTERNATIONAL, INC | | 11825-4-27 | 59563 | REID PRODUCTS INC. | | 109453-4-27 | 80539 | SPS TECHNOLOGIES, LLC | | HP5453-4-27 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | PBF1253-4-27 | 27624 | SPS TECHNOLOGIES LLC | | S11-1060-4-27 | 57928 | SONIC INDUSTRIES, INC. | | FIT7047-4-27 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | KS3020-4-27 | 59764 | KENALOY PRODUCTS INC SUB MASCO CORP | | MB61-4-27 | 73197 | HI-SHEAR CORPORATION | | ST3M453 | 76301 | THE BOEING COMPANY | | MB61-4-27 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | VAL23029-4-27 | 06710 | VALLEY-TODECO, INC. | | VS3204-4-27 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | ST3M453-4-27 | 59764 | KENALOY PRODUCTS INC SUB MASCO CORP | | ST3M453-4-27 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| FASTENER LENGTH | 2.070 INCHES MINIMUM AND 2.116 INCHES MAXIMUM | | GRIP DIAMETER | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM | | GRIP LENGTH | 1.688 INCHES NOMINAL | | HEAD HEIGHT | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | MINIMUM TENSILE STRENGTH | 5650 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SHEARBOLT, HIGH STRENGTH, 12 PT HEAD, PH13-8, MOLYBDENUM | | SPECIAL FEATURES | DOUBLE SHEAR STRENGTH MIN IN LBS 12,280 | | WIDTH BETWEEN FLATS | 0.491 INCHES MINIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.397 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 32 |
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