5360-01-394-7302 SPRING,HELICAL,COMPRESSION Index 5305-01-394-7304 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-01-394-7303

Federal Supply Class:
5306

National Item Identification Number:
013947303

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:
MS27576-16-10480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS27576-16-10496906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER1.000 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.200 INCHES MINIMUM AND
1.326 INCHES MAXIMUM
FASTENER LENGTH7.732 INCHES MINIMUM AND
7.752 INCHES MAXIMUM
MATERIALSTEEL COMP 630 OR
STEEL COMP 631 OR
STEEL COMP 440C LOCKING FEATURE
STEEL COMP 302 SPRING
STEEL COMP E4340 OR
STEEL COMP 4140 OR
STEEL COMP 4130 OR
STEEL COMP 8740 OR
STEEL COMP 6150 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR
AMS 5644 ASSN STD 2ND MATERIAL RESPONSE OR
QQ-S-763 FED SPEC 3RD MATERIAL RESPONSE LOCKING FEATURE
AMS 5673 ASSN STD 1ST MATERIAL RESPONSE OR
ASTM A580 ASSN STD 2ND MATERIAL RESPONSE SPRING
SURFACE TREATMENTPASSIVATE LOCKING FEATURE
PASSIVATE STAND-OFF
CADMIUM AND
CHROMATE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE LOCKING FEATURE
QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE STAND-OFF
QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
41.0 ROCKWELL C MAXIMUM FASTENER
MINIMUM TENSILE STRENGTH95000 POUNDS PER SQUARE INCH
HEAD STYLECROWNED HEXAGON
HEAD HEIGHT0.501 INCHES MINIMUM AND
0.516 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.427 INCHES MINIMUM AND
1.440 INCHES MAXIMUM
LOCKING FEATURERETAINER FASTENER
GRIP LENGTH6.500 INCHES MINIMUM AND
6.516 INCHES MAXIMUM
GRIP DIAMETER0.9982 INCHES MINIMUM AND
0.9991 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
63.0 MICROINCHES GRIP
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER7.356 INCHES MINIMUM AND
7.361 INCHES MAXIMUM FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER0.141 INCHES MINIMUM AND
0.151 INCHES MAXIMUM FIRST HOLE
FEATURES PROVIDEDCOTTER PIN


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