5306-00-503-5691 BOLT,SHEAR Index 5305-00-503-5695 SCREW,CLOSE TOLERANCE

National Stock Number:
5306-00-503-5693

Federal Supply Class:
5306

National Item Identification Number:
005035693

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:
11797A06U04659563REID PRODUCTS INC.
68484-6A4650392SPS TECHNOLOGIES INC
68484-6A4656878SPS TECHNOLOGIES, LLC
AIC2263A06U04606725SPS TECHNOLOGIES, LLC
BM3200-6A04617446HUCK INTERNATIONAL, INC
BM3200-6A04697928HUCK INTL INC
PBF1041A6U04627624SPS TECHNOLOGIES LLC
STSBG000A06U04606710VALLEY-TODECO, INC.
STSBG000A06U04606725SPS TECHNOLOGIES, LLC
STSBG000A06U04609650FLEET MFG CO INC
STSBG000A06U04627624SPS TECHNOLOGIES LLC
STSBG000A06U04656878SPS TECHNOLOGIES, LLC
STSBG000A06U04698897LOCKHEED MARTIN CORP
VAL23611-6D04606710VALLEY-TODECO, INC.
VS2978A06U04606950HOWMET GLOBAL FASTENING SYSTEMS INC
VS2978A06U04692215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
FASTENER LENGTH3.259 INCHES MINIMUM AND 3.306 INCHES MAXIMUM
GRIP DIAMETER0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH2.875 INCHES NOMINAL
HEAD HEIGHT0.210 INCHES NOMINAL
HEAD STYLEDOUBLE HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH132000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSTSBS000 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTNICKEL AND CADMIUM AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.384 INCHES MINIMUM AND 0.431 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNJF


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