5305-01-305-8561 SCREW,SHOULDER Index 5305-01-305-8563 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-305-8562

Federal Supply Class:
5306

National Item Identification Number:
013058562

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:
122896-4D1080539SPS TECHNOLOGIES, LLC
AIC688-4D1006725SPS TECHNOLOGIES, LLC
S397-4D1017446HUCK INTERNATIONAL, INC
PBF 1266-4D1027624SPS TECHNOLOGIES LLC
MB155-4D1073197HI-SHEAR CORPORATION
MB155-4D10L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
VCG0002-4D1006710VALLEY-TODECO, INC.
VS3191-4D1006950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M747-4D100ZC92HEARTLAND PRECISION FASTENERS INC
ST3M747-4D1076301THE BOEING COMPANY
ST3M747-4D1092215HOWMET GLOBAL FASTENING SYSTEMS INC
VS3191-4D1092215HOWMET GLOBAL FASTENING SYSTEMS INC
S397-4D1097928HUCK INTL INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER0.885 INCHES MINIMUM AND 0.942 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH1.006 INCHES MINIMUM AND 1.053 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
HEAD HEIGHT0.134 INCHES MINIMUM AND 0.194 INCHES MAXIMUM
HEAD MINOR DIAMETER0.448 INCHES MINIMUM AND 0.455 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 DIAMETER0.250 INCHES
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.371 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH28


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