5305-01-626-8200, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-626-8200

Federal Supply Class:
5305

National Item Identification Number:
016268200

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:

121672-5-10	80539	SPS TECHNOLOGIES, LLC
ST3M736-5-10	76301	THE BOEING COMPANY

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.008 INCHES NOMINAL OVERALL
FASTENER LENGTH	1.113 INCHES NOMINAL
GRIP LENGTH	0.625 INCHES NOMINAL
GRIP DIAMETER	0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.577 INCHES NOMINAL
HEAD STYLE	OVAL COUNTERSUNK
INTERNAL DRIVE STYLE	HIGH-TORQUE
LOCKING FEATURE	RETAINER RING
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5643 FED SPEC SINGLE MATERIAL RESPONSE RING
PART NAME ASSIGNED BY CONTROLLING AGENCY	BOLT, SELF-RETAINING, IMPEDENCE TYPE, FLUSH HEAD, 450 DEG F, 95 KSI FSU
MATERIAL	STEEL COMP 4140 OVERALL
MATERIAL	STEEL COMP 630 RING
MINIMUM TENSILE STRENGTH	7510 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.3125 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM OVERALL
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED STD SINGLE TREATMENT RESPONSE RING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416, TYPE II, CLASS 2 FED STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT	PASSIVATE RING
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.337 INCHES MINIMUM AND 0.368 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	24

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