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National Stock Number:
5306-01-167-2403
Federal Supply Class:
5306
National Item Identification Number:
011672403
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:
| LD111-0026-0524 | 06DM5 | INFINITY FABRICATION, INC. | | LD111-0026-0524 | 0BT76 | PRO-FAB, LLC | | LD111-0026-0524 | 0C7H8 | D-J ENGINEERING INC | | LD111-0026-0524 | 0P657 | CAMNETICS MANUFACTURING CORPORATION | | LD111-0026-0524 | 14248 | HARLOW AEROSTRUCTURES, LLC | | LD111-0026-0524 | 1P642 | VOLUMATIC INC | | LD111-0026-0524 | 29957 | NORDAM GROUP LLC, THE | | LD111-0026-0524 | 2V045 | MALONES CNC MACHINING INC | | LD111-0026-0524 | 34336 | TECT HYPERVELOCITY, INC. | | LD111-0026-0524 | 3L665 | C. E. MACHINE CO., INC. | | LD111-0026-0524 | 43999 | THE BOEING COMPANY | | LD111-0026-0524 | 59213 | AERO COMPONENTS, LLC |
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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 | 0.442 INCHES MINIMUM AND | | 0.492 INCHES MAXIMUM | | FASTENER LENGTH | 1.952 INCHES MINIMUM AND | | 1.982 INCHES MAXIMUM | | MATERIAL | STEEL COMP XM-13 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 46.0 ROCKWELL C MINIMUM AND | | 50.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | DOUBLE HEXAGON | | HEAD HEIGHT | 0.177 INCHES MINIMUM AND | | 0.197 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.457 INCHES MINIMUM AND | | 0.477 INCHES MAXIMUM | | GRIP LENGTH | 1.490 INCHES MINIMUM AND | | 1.510 INCHES MAXIMUM | | GRIP DIAMETER | 0.3115 INCHES MINIMUM AND | | 0.3120 INCHES MAXIMUM |
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