5305-00-151-9929 SCREW,CAP,SOCKET HEAD Index 5305-00-151-9931 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-00-151-9930

Federal Supply Class:
5305

National Item Identification Number:
001519930

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:
SFH22-5A2256878SPS TECHNOLOGIES, LLC
SFT22-5A2256878SPS TECHNOLOGIES, LLC
SFT22-5A2280539SPS TECHNOLOGIES, LLC


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH1.710 INCHES MINIMUM AND 1.757 INCHES MAXIMUM
GRIP DIAMETER0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM
GRIP LENGTH1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.573 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLESLOT
MATERIAL DOCUMENT AND CLASSIFICATIONSPS-M-107,STANDARD PRESSED STEEL CO MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.325 INCHES MINIMUM AND 0.392 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNJF


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