5306-14-292-4951 BOLT,CLOSE TOLERANCE Index 5306-14-292-4958 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-14-292-4953

Federal Supply Class:
5306

National Item Identification Number:
142924953

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:
22201BC050007LF0074BOMAP STE DE BOULONNERIE ET DE MATRICAGE DE PRECISION SA
22201BC050007LF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
22201BC050007LF0188BLANC AERO INDUSTRIES - GROUPE LISIAEROSPACE
22201BC050007LF0236SAINT CHAMOND GRANAT SA
22201BC050007LF0434ALIGN AEROSPACE FRANCE SAS
22201BC050007LF3669DELTA METAL
22201BC050007LF4871LEFEBVRE STE DES ANCIENS ETS PAUL SA
2220IBC050007LKCF40ANIXTER LTD
L22201-50-007BCLF0300DASSAULT AVIATION
L22201-50-7BCLF0074BOMAP STE DE BOULONNERIE ET DE MATRICAGE DE PRECISION SA
L22201-50-7BCLF0111BUREAU NORMALISATION AERONAUTIQUEESPACE
L22201-50-7BCLF0188BLANC AERO INDUSTRIES - GROUPE LISIAEROSPACE
L22201-50-7BCLF0236SAINT CHAMOND GRANAT SA
L22201-50-7BCLF0434ALIGN AEROSPACE FRANCE SAS
L22201-50-7BCLF3669DELTA METAL
L22201-50-7BCLF4871LEFEBVRE STE DES ANCIENS ETS PAUL SA


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS4H
FASTENER LENGTH15.5 MILLIMETERS NOMINAL
GRIP DIAMETER4.978 MILLIMETERS MINIMUM AND 4.990 MILLIMETERS MAXIMUM
GRIP LENGTH7.0 MILLIMETERS NOMINAL
HEAD HEIGHT2.8 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONF3025 AIR 9160C MIL STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL COMP 35NC6
MINIMUM TENSILE STRENGTH88.0 HECTOBAR
MINIMUM YIELD STRENGTH74.0 HECTOBAR
NOMINAL THREAD DIAMETER5.0 MILLIMETERS
SCREW THREAD LENGTH8.5 MILLIMETERS NOMINAL
SCREW THREAD SERIES DESIGNATORISO M
WIDTH BETWEEN FLATS8.0 MILLIMETERS NOMINAL
SURFACE FINISH0.8 MICRONS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNF L 09-753 CODE L NATIONAL SPEC SINGLE TREATMENT RESPONSE
THREAD DIRECTIONRIGHT-HAND
THREAD PITCH IN MILLIMETERS0.8


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