5306-01-282-4789 BOLT,CLOSE TOLERANCE Index 5305-01-282-4791 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-282-4790

Federal Supply Class:
5306

National Item Identification Number:
012824790

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:
11833-5D1459563REID PRODUCTS INC.
122896-5D1480539SPS TECHNOLOGIES, LLC
AIC688-5D1406725SPS TECHNOLOGIES, LLC
GS1031-5D141EM77B & B SPECIALTIES INC
MB155-5D1473197HI-SHEAR CORPORATION
MB155-5D14L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
VCG0002-5D1406710VALLEY-TODECO, INC.
VS3191-5D1406950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M747-5D140ZC92HEARTLAND PRECISION FASTENERS INC
S397-5D1417446HUCK INTERNATIONAL, INC
PBF1266-5D1427624SPS TECHNOLOGIES LLC
ST3M747-5D1476301THE BOEING COMPANY
ST3M747-5D1492215HOWMET GLOBAL FASTENING SYSTEMS INC
S397-5D1497928HUCK INTL INC
VS3191-5D1492215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.202 INCHES MINIMUM AND 1.259 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH1.326 INCHES MINIMUM AND 1.373 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
GRIP LENGTH0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM
HEAD HEIGHT0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM
HEAD MINOR DIAMETER0.514 INCHES MINIMUM AND 0.521 INCHES MAXIMUM
HEAD STYLESPLINE DRIVE SHEAR HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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