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National Stock Number:
5306-00-466-0783
Federal Supply Class:
5306
National Item Identification Number:
004660783
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:
| 5306PL1495494 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 9662M72P03 | 06710 | VALLEY-TODECO, INC. | | 9662M72P03 | 06725 | SPS TECHNOLOGIES, LLC | | 9662M72P03 | 07482 | GENERAL ELECTRIC COMPANY | | 9662M72P03 | 0UCY9 | M.S. AEROSPACE INC. | | 9662M72P03 | 27238 | BRISTOL INDUSTRIES, LLC | | 9662M72P03 | 4GP55 | ACUFAST AIRCRAFT PRODUCTS | | 9662M72P03 | 93907 | TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS |
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Techincal Specification:
| FASTENER LENGTH | 0.820 INCHES MINIMUM AND 0.840 INCHES MAXIMUM | | GRIP DIAMETER | 0.2640 INCHES MINIMUM AND 0.2650 INCHES MAXIMUM | | GRIP LENGTH | 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM | | HEAD HEIGHT | 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM | | HEAD STYLE | DOUBLE HEXAGON | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.605 INCHES MINIMUM AND 0.645 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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