5305-01-452-9638 SCREW,MACHINE Index 1730-01-452-9640 STRAP,FORWARD

National Stock Number:
5305-01-452-9639

Federal Supply Class:
5305

National Item Identification Number:
014529639

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:
1297313019200US ARMY ARDEC RDECOM
129731301S002CHARLES REED KNIGHT JR


Techincal Specification:
HEAD HEIGHT0.188 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPATCH FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONAMSI B18.3-1986 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL THREAD DIAMETER0.190 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-53022 ASSN STD SINGLE TREATMENT RESPONSE OVERALL OR MIL-P-53030 ASSN STD SINGLE TREATMENT RESPONSE OVERALL OR MIL-P-53084 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPRIMER OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32


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