2910-00-321-9334 CONTROL,ENGINE CHOK Index 4310-00-321-9352 VALVE,SAFETY RELIEF

National Stock Number:
5306-00-321-9350

Federal Supply Class:
5306

National Item Identification Number:
003219350

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:
109453-7-1050392SPS TECHNOLOGIES INC
109453-7-1056878SPS TECHNOLOGIES, LLC
BM17019-7-1017446HUCK INTERNATIONAL, INC
11825-7-1059563REID PRODUCTS INC.
MB61-7-1073197HI-SHEAR CORPORATION
BM17019-7-1097928HUCK INTL INC
ST3M453-7-1006710VALLEY-TODECO, INC.
ST3M453-7-1006725SPS TECHNOLOGIES, LLC
ST3M453-7-100JV78J M PRECISION INC
ST3M453-7-100UCY9M.S. AEROSPACE INC.
ST3M453-7-1027624SPS TECHNOLOGIES LLC
ST3M453-7-1057928SONIC INDUSTRIES, INC.
ST3M453-7-1070236TACTAIR FLUID CONTROLS INC
ST3M453-7-1073197HI-SHEAR CORPORATION
VAL23029-7-1006710VALLEY-TODECO, INC.
ST3M453-7-1076301THE BOEING COMPANY
US3204-7-1092215HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M453-7-10L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
FASTENER LENGTH1.208 INCHES MINIMUM AND 1.255 INCHES MAXIMUM
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
GRIP DIAMETER0.4365 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
HEAD HEIGHT0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES
SPECIFICATION/STANDARD DATA08524-B-17010 MANUFACTURERS STANDARD
WIDTH BETWEEN FLATS0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.573 INCHES MINIMUM AND 0.640 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH20


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