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National Stock Number:
5306-01-597-9657
Federal Supply Class:
5306
National Item Identification Number:
015979657
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:
| 11857E3D6A | 59563 | REID PRODUCTS INC. | | 3M1275E3D6A | 007R1 | TWIST TITE MFG, INC | | 3M1275E3D6A | 06710 | VALLEY-TODECO, INC. | | 3M1275E3D6A | 0K6Z0 | SATURN FASTENERS INC | | 3M1275E3D6A | 0ZC92 | HEARTLAND PRECISION FASTENERS INC | | 3M1275E3D6A | 1EM77 | B & B SPECIALTIES INC | | TX1026E3D6A | 06725 | SPS TECHNOLOGIES, LLC | | TX1026E3D6A | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026E3D6A | 17446 | HUCK INTERNATIONAL, INC | | 3M1275E3D6A | 1VSL7 | HOUSTON PRECISION FASTENERS I LP | | 3M1275E3D6A | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | 3M1275E3D6A | 76301 | THE BOEING COMPANY | | 3M1275E3D6A | 80539 | SPS TECHNOLOGIES, LLC | | 3M1275E3D6A | U6683 | LINREAD LTD DBA LINREAD NORTHBRIDGE | | TX1026E3D6A | 27624 | SPS TECHNOLOGIES LLC | | TX1026E3D6A | 56878 | SPS TECHNOLOGIES, LLC | | WC1275E3D6A | 60516 | WEST COAST AEROSPACE, INC. | | TX1026E3D6A | 73197 | HI-SHEAR CORPORATION | | TX1026E3D6A | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.315 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-L-87132, TYPE I, CLASS B MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.3729 INCHES MINIMUM AND | | 0.3813 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | HOLE CONFIGURATION STYLE | ROUND | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 1 | | HOLE DIAMETER | 0.070 INCHES NOMINAL | | GRIP LENGTH | 0.372 INCHES NOMINAL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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