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National Stock Number:
5306-01-569-7960
Federal Supply Class:
5306
National Item Identification Number:
015697960
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:
| 3M1325-5H15-44 | 06710 | VALLEY-TODECO, INC. | | 3M1325-5H15-44 | 06725 | SPS TECHNOLOGIES, LLC | | 3M1325-5H15-44 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3M1325-5H15-44 | 73197 | HI-SHEAR CORPORATION | | 3M1325-5H15-44 | 76301 | THE BOEING COMPANY | | 3M1325-5H15-44 | 80539 | SPS TECHNOLOGIES, LLC | | 3M1325-5H15-44 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | THREAD QUANTITY PER INCH | 24 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.467 INCHES NOMINAL | | FASTENER LENGTH | 1.389 INCHES MINIMUM AND | | 1.436 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | SPLINE DRIVE SHEAR HEAD | | HEAD HEIGHT | 0.187 INCHES NOMINAL | | HEAD MINOR DIAMETER | 0.515 INCHES NOMINAL | | HOLE CONFIGURATION STYLE | SPLINE | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 1 | | HOLE DIAMETER | 0.065 INCHES MINIMUM AND | | 0.075 INCHES MAXIMUM | | GRIP LENGTH | 0.938 INCHES NOMINAL | | GRIP DIAMETER | 0.311 INCHES MINIMUM AND | | 0.312 INCHES MAXIMUM | | SPECIAL FEATURES | THERE IS A 0.138-32 UNJC-3B TAPPED HOLE THROUGH TOP PORTION OF SPLINE HEAD TO ACCOMMODATE AN INJECTION PORT LOCATED ON THE GRIP 0.440 INCH BELOW THE BEARING SURFACE | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
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