5305-01-365-0408 SCREW,CLOSE TOLERANCE Index 5940-01-365-0410 TERMINAL,LUG

National Stock Number:
5305-01-365-0409

Federal Supply Class:
5305

National Item Identification Number:
013650409

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:
BACB30LR6-4306710VALLEY-TODECO, INC.
BACB30LR6-4306725SPS TECHNOLOGIES, LLC
BACB30LR6-4306950HOWMET GLOBAL FASTENING SYSTEMS INC
BACB30LR6-4317419DEUTSCH CO THE
BACB30LR6-4317943FEDERAL MANUFACTURING CORP
BACB30LR6-4327624SPS TECHNOLOGIES LLC
BACB30LR6-4380539SPS TECHNOLOGIES, LLC
BACB30LR6-4381205THE BOEING COMPANY
BACB30LR6-4392215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH3.250 INCHES MINIMUM AND 3.280 INCHES MAXIMUM
GRIP DIAMETER0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM
GRIP LENGTH2.678 INCHES MINIMUM AND 2.698 INCHES MAXIMUM
HEAD DIAMETER0.691 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
NOMINAL THREAD DIAMETER0.375 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.578 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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