|
|
|
National Stock Number:
5306-01-522-0343
Federal Supply Class:
5306
National Item Identification Number:
015220343
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.
|
Manufacturer Information:
| 120978-3-8R | 56878 | SPS TECHNOLOGIES, LLC | | 120978-3-8R | 80539 | SPS TECHNOLOGIES, LLC | | AIC596-3-8R | 06725 | SPS TECHNOLOGIES, LLC | | H411-3-8R | 17446 | HUCK INTERNATIONAL, INC | | PBF7521-3-8R | 27624 | SPS TECHNOLOGIES LLC | | C7521-3-8R | 81755 | LOCKHEED MARTIN CORPORATION | | VCG0009-3-8R | 06710 | VALLEY-TODECO, INC. | | VS3133-3-8R | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
|
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 | 0.323 INCHES NOMINAL | | FASTENER LENGTH | 0.823 INCHES NOMINAL | | MATERIAL | STEEL COMP H11 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | SPLINE DRIVE SHEAR HEAD | | HEAD HEIGHT | 0.140 INCHES NOMINAL | | HEAD MINOR DIAMETER | 0.359 INCHES MINIMUM AND | | 0.380 INCHES MAXIMUM | | GRIP LENGTH | 0.500 INCHES NOMINAL | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND | | 0.1894 INCHES MAXIMUM | | SPECIAL FEATURES | THREADS .0156 OVERSIZE, RESTRICTED TO REPAIR WORK ONLY | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT |
|
|