4810-01-197-8269 VALVE,REGULATING,FLUID PRESSURE Index 5305-01-197-8272 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-01-197-8270

Federal Supply Class:
5306

National Item Identification Number:
011978270

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:
10116140A486GNIMIKKEISTOKESKUS NCB FINLAND
122895-3D2380539SPS TECHNOLOGIES, LLC
AIC687-3D2306725SPS TECHNOLOGIES, LLC
GS1015-3D231EM77B & B SPECIALTIES INC
PBF1265-3D2327624SPS TECHNOLOGIES LLC
MB154-3D2373197HI-SHEAR CORPORATION
VCG0001-3D2306710VALLEY-TODECO, INC.
VS3174-3D2306950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M744-3D230ZC92HEARTLAND PRECISION FASTENERS INC
S406-3D2317446HUCK INTERNATIONAL, INC
ST3M744-3D2358998FASTENER INNOVATION TECHNOLOGY, INC.
ST3M744-3D2376301THE BOEING COMPANY
VS3174-3D2392215HOWMET GLOBAL FASTENING SYSTEMS INC
S406-3D2397928HUCK INTL INC


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.586 INCHES MINIMUM AND 1.616 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH1.704 INCHES MINIMUM AND 1.724 INCHES MAXIMUM
GRIP DIAMETER0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM
HEAD HEIGHT0.140 INCHES NOMINAL
HEAD STYLESPLINE DRIVE SHEAR HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES
SHANK UNTHREADED HOLE DIAMETER0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS0.383 INCHES MINIMUM AND 0.389 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.256 INCHES MINIMUM AND 0.296 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH32


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