5355-01-478-2959 KNOB Index 9905-01-478-2961 PLATE,INSTRUCTION

National Stock Number:
5306-01-478-2960

Federal Supply Class:
5306

National Item Identification Number:
014782960

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:
109453-4-280PTK6SPS TECHNOLOGIES INC
109453-4-2856878SPS TECHNOLOGIES, LLC
AIC753-4-2806725SPS TECHNOLOGIES, LLC
BM17019-4-2817446HUCK INTERNATIONAL, INC
11825-4-2859563REID PRODUCTS INC.
109453-4-2880539SPS TECHNOLOGIES, LLC
HP5453-4-280ZC92HEARTLAND PRECISION FASTENERS INC
GS1016-4-281EM77B & B SPECIALTIES INC
PBF1253-4-2827624SPS TECHNOLOGIES LLC
S11-1060-4-2857928SONIC INDUSTRIES, INC.
FIT7047-4-2858998FASTENER INNOVATION TECHNOLOGY, INC.
KS3020-4-2859764KENALOY PRODUCTS INC SUB MASCO CORP
MB61-4-2873197HI-SHEAR CORPORATION
MB61-4-28L4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
VAL23029-4-2806710VALLEY-TODECO, INC.
VS3204-4-2806950HOWMET GLOBAL FASTENING SYSTEMS INC
ST3M453-4-280K6Z0SATURN FASTENERS INC
SLB252-4-2816258SPACE-LOK, INC.
ST3M453-4-281VSL7HOUSTON PRECISION FASTENERS I LP
WC453-4-2860516WEST COAST AEROSPACE, INC.
ST3M453-4-2876301THE BOEING COMPANY
ST3M45376301THE BOEING COMPANY
VS3204-4-2892215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH2.132 INCHES MINIMUM AND 2.178 INCHES MAXIMUM
GRIP DIAMETER0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
GRIP LENGTH1.750 INCHES NOMINAL
HEAD HEIGHT0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH5650 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYSHEARBOLT, HIGH STRENGTH, 12 PT HEAD, PH13-8, MOLYBDENUM
SPECIAL FEATURESDOUBLE SHEAR STRENGTH MIN IN LBS 12,280
WIDTH BETWEEN FLATS0.491 INCHES MINIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.397 INCHES NOMINAL
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH32


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