5305-01-287-2908 SCREW,CAP,HEXAGON HEAD Index 5305-01-287-2911 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-287-2909

Federal Supply Class:
5306

National Item Identification Number:
012872909

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:
109453-9-2256878SPS TECHNOLOGIES, LLC
11825-9-2259563REID PRODUCTS INC.
AIC753-9-2206725SPS TECHNOLOGIES, LLC
BM17019-9-2217446HUCK INTERNATIONAL, INC
GS1016-9-221EM77B & B SPECIALTIES INC
BM17019-9-2297928HUCK INTL INC
S353-9-2217446HUCK INTERNATIONAL, INC
PBF1253-9-2227624SPS TECHNOLOGIES LLC
S11-1060-9-2257928SONIC INDUSTRIES, INC.
MA5453-9-2258845ABOUNDING SECURITY INC DIV OF MAA CORP
KS3020-9-2259764KENALOY PRODUCTS INC SUB MASCO CORP
MB61-9-2273197HI-SHEAR CORPORATION
S353-9-2297928HUCK INTL INC
MB61-9-22L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
VAL23029-9-2206710VALLEY-TODECO, INC.
VS3204-9-2206950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M453-9-2276301THE BOEING COMPANY
VS3204-9-2292215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH2.084 INCHES MINIMUM AND 2.131 INCHES MAXIMUM
GRIP DIAMETER0.5610 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM
GRIP LENGTH1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM
HEAD HEIGHT0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON
MATERIALSTEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER0.562 INCHES
WIDTH BETWEEN FLATS0.877 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.699 INCHES MINIMUM AND 0.766 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH18


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