6130-01-483-8267 POWER SUPPLY Index 6150-01-483-8269 CABLE ASSEMBLY,SPECIAL PURPOSE,E

National Stock Number:
5305-01-483-8268

Federal Supply Class:
5305

National Item Identification Number:
014838268

Description:
SCREW,CLOSE TOLERANCE

Detail:
A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
BACB30DL4-1081205THE BOEING COMPANY
BACB30DL4C1081205THE BOEING COMPANY


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH0.828 INCHES MINIMUM AND 1.040 INCHES MAXIMUM
GRIP DIAMETER0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM
HEAD DIAMETER0.455 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLERECESSED TYPE I
MATERIALSTEEL COMP XM-13 OVERALL
SINGLE SHEAR STRENGTH125000 POUNDS PER SQUARE INCH
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.425 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH28


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