5305-00-162-4588, SCREW,CLOSE TOLERANCE

5305-00-162-4589 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-162-4588

Federal Supply Class:
5305

National Item Identification Number:
001624588

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:

AS131-03-13	84256	AVIBANK MFG., INC.
AS131-3-13	84256	AVIBANK MFG., INC.

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.095 INCHES MINIMUM AND 1.115 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	1.190 INCHES MINIMUM AND 1.204 INCHES MAXIMUM
GRIP DIAMETER	0.1885 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM
GRIP LENGTH	0.812 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.360 INCHES MINIMUM AND 0.374 INCHES MAXIMUM
HEAD HEIGHT	0.095 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
NOMINAL THREAD DIAMETER	0.190 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES	PLUNGER OPERATED SPRING LOADED RETAINING BALLS
SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2CL 3 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	CADMIUM AND CHROMATE FASTENER
SURFACE TREATMENT	PASSIVATE SPRING
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.268 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	32

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