5306-01-165-3311 BOLT,CLOSE TOLERANCE Index 5306-01-165-3313 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-165-3312

Federal Supply Class:
5306

National Item Identification Number:
011653312

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:
10116052A486GNIMIKKEISTOKESKUS NCB FINLAND
122896-4-1656878SPS TECHNOLOGIES, LLC
122896-4-1680539SPS TECHNOLOGIES, LLC
AIC688-4-1606725SPS TECHNOLOGIES, LLC
GS1030-4-161EM77B & B SPECIALTIES INC
GS1031-4-161EM77B & B SPECIALTIES INC
HP7747-4-160ZC92HEARTLAND PRECISION FASTENERS INC
MB155-4-1673197HI-SHEAR CORPORATION
MB155-4-16L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
PBF1266-4-1627624SPS TECHNOLOGIES LLC
S397-4-1617446HUCK INTERNATIONAL, INC
S397-4-1697928HUCK INTL INC
SLB254-4-1616258SPACE-LOK, INC.
ST3M747-4-161VSL7HOUSTON PRECISION FASTENERS I LP
ST3M747-4-1658998FASTENER INNOVATION TECHNOLOGY, INC.
ST3M747-4-1676301THE BOEING COMPANY
ST3M747-4-1692215HOWMET GLOBAL FASTENING SYSTEMS INC
VCG0002-4-1606710VALLEY-TODECO, INC.
VS3191-4-1606950HOWMET GLOBAL FASTENING SYSTEMS INC
VS3191-4-1692215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH1.381 INCHES MINIMUM AND 1.428 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
GRIP LENGTH0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
HEAD HEIGHT0.164 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 DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.448 INCHES MINIMUM AND 0.455 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.371 INCHES MINIMUM AND 0.428 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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