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National Stock Number:
5306-01-350-0651
Federal Supply Class:
5306
National Item Identification Number:
013500651
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:
| 109453-4D31 | 56878 | SPS TECHNOLOGIES, LLC | | 11825-4D31 | 59563 | REID PRODUCTS INC. | | AIC753-4D31 | 06725 | SPS TECHNOLOGIES, LLC | | BM17019-4D31 | 17419 | DEUTSCH CO THE | | BM17019-4D31 | 97928 | HUCK INTL INC | | GS1016-4D31 | 1EM77 | B & B SPECIALTIES INC | | MB61-4D31 | 73197 | HI-SHEAR CORPORATION | | MB61-4D31 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC | | PBF1253-4D31 | 27624 | SPS TECHNOLOGIES LLC | | S353-4D31 | 17446 | HUCK INTERNATIONAL, INC | | S353-4D31 | 72914 | GRIMES AEROSPACE COMPANY | | S353-4D31 | 89513 | GRIMES AEROSPACE CO | | S353-4D31 | 97928 | HUCK INTL INC | | ST3M453-4D31 | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | ST3M453-4D31 | 57928 | SONIC INDUSTRIES, INC. | | ST3M453-4D31 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | ST3M453-4D31 | 59728 | ARTHUR H. THOMAS COMPANY | | ST3M453-4D31 | 59764 | KENALOY PRODUCTS INC SUB MASCO CORP | | ST3M453-4D31 | 76301 | THE BOEING COMPANY | | ST3M453-4D31 | 80539 | SPS TECHNOLOGIES, LLC | | VAL2309-4D31 | 06710 | VALLEY-TODECO, INC. | | VS3204-4D31 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | VS3204-4D31 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.197 INCHES MINIMUM AND 2.254 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 2.318 INCHES MINIMUM AND 2.365 INCHES MAXIMUM | | GRIP DIAMETER | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | GRIP LENGTH | 1.927 INCHES MINIMUM AND 1.947 INCHES MAXIMUM | | HEAD HEIGHT | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | ST3-453,CAGE76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP XM-13 OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE | | WIDTH BETWEEN FLATS | 0.439 INCHES MINIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.397 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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