5305-01-140-7893 SCREW Index 5306-01-140-7895 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-01-140-7894

Federal Supply Class:
5306

National Item Identification Number:
011407894

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:
1189227-10-1205824AEROJET ROCKETDYNE INC
122411-10-1280539SPS TECHNOLOGIES, LLC
VS3240-10-1206950HOWMET GLOBAL FASTENING SYSTEMS INC
PBF1284-10-1227624SPS TECHNOLOGIES LLC
VS3240-10-1292215HOWMET GLOBAL FASTENING SYSTEMS INC
PBF 1284-10-12D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS4H
FASTENER LENGTH33.50 MILLIMETERS MINIMUM AND 34.50 MILLIMETERS MAXIMUM
GRIP DIAMETER9.9620 MILLIMETERS MINIMUM AND 9.9870 MILLIMETERS MAXIMUM
GRIP LENGTH11.75 MILLIMETERS MINIMUM AND 12.25 MILLIMETERS MAXIMUM
HEAD HEIGHT6.82 MILLIMETERS MINIMUM AND 7.13 MILLIMETERS MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
III PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PROPRIETARY CHARACTERISTICSPACS
MINIMUM TENSILE STRENGTH140000 MEGAPASCALS
NOMINAL THREAD DIAMETER10.0 MILLIMETERS
WIDTH BETWEEN FLATS16.73 MILLIMETERS MINIMUM AND 17.00 MILLIMETERS MAXIMUM
SURFACE FINISH0.8 MICROMETERS THREADS
SURFACE FINISH0.8 MICROMETERS BEARING SURFACE OF HEAD
SURFACE FINISH0.8 MICROMETERS GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH21.75 MILLIMETERS MINIMUM AND 22.25 MILLIMETERS MAXIMUM
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.5


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