5305-01-274-0035 SCREW,SHOULDER Index 5305-01-274-0037 SCREW ASSEMBLY,PANEL

National Stock Number:
5306-01-274-0036

Federal Supply Class:
5306

National Item Identification Number:
012740036

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:
SS5116-10-5278286SIKORSKY AIRCRAFT CORPORATION
SS5116-10-5280539SPS TECHNOLOGIES, LLC
SS5116-10-5284256AVIBANK MFG., INC.


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER3.968 INCHES MINIMUM AND 4.018 INCHES MAXIMUM FIRST HOLE
EXTENDED WASHER THICKNESS0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
EXTENDED WASHER DIAMETER1.040 INCHES MINIMUM AND 1.050 INCHES MAXIMUM
FASTENER LENGTH4.736 INCHES MINIMUM AND 4.766 INCHES MAXIMUM
GRIP DIAMETER0.623 INCHES MINIMUM AND 0.624 INCHES MAXIMUM
GRIP LENGTH3.240 INCHES MINIMUM AND 3.260 INCHES MAXIMUM
HEAD HEIGHT0.608 INCHES MINIMUM AND 0.628 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A580 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A580 ASSN STD 2ND MATERIAL RESPONSE OR AMS5678 ASSN STD 3RD MATERIAL RESPONSE SPRING
MATERIALSTEEL COMP 302B OR STEEL COMP 304 OR STEEL COMP 631 SPRING
MATERIALSTEEL COMP 303 OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE POINT
MATERIALSTEEL COMP XM-13 FASTENER
MATERIALSTEEL COMP XM-13 STAND-OFF
MINIMUM TENSILE STRENGTH54800 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURESSUPPLY WITH DOG TYPE POINT 0.499 IN. MIN AND 0.552 IN. MAX. DIAMETER; 0.537 IN. NOMIANL LENGTH WITH GROOVE PIN MADE OF 300 DERISED CRES PER FED-STD-66; APPLY DRY FILM LUBRICANT TO PAWL/RETAINER
WIDTH BETWEEN FLATS0.672 INCHES MINIMUM AND 0.687 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
SURFACE TREATMENTPASSIVATE FASTENER
SURFACE TREATMENTPASSIVATE SPRING
SURFACE TREATMENTPASSIVATE STAND-OFF
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH1.476 INCHES MINIMUM AND 1.526 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH18


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