5305-01-119-8357, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-119-8357

Federal Supply Class:
5305

National Item Identification Number:
011198357

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:

AS205-10-24	84256	AVIBANK MFG., INC.
CA2658-10-24	29372	HOWMET GLOBAL FASTENING SYSTEMS INC.
GB511DW10-24	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.625 INCHES
THREAD QUANTITY PER INCH	18
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.606 INCHES MINIMUM AND
	0.637 INCHES MAXIMUM
FASTENER LENGTH	2.427 INCHES NOMINAL
MATERIAL	STEEL COMP 630 OR
	STEEL COMP 302 SPRING
	STEEL COMP 630 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5673 ASSN STD 1ST MATERIAL RESPONSE OR
	QQ-W-423 FED SPEC 2ND MATERIAL RESPONSE SPRING
	AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
SURFACE TREATMENT	PASSIVATE SPRING
	PASSIVATE FASTENER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SPRING
	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
HARDNESS RATING	38.0 ROCKWELL C MINIMUM AND
	45.0 ROCKWELL B MINIMUM FASTENER
MINIMUM TENSILE STRENGTH	170000 POUNDS PER SQUARE INCH
HEAD STYLE	CROWNED HEXAGON
HEAD HEIGHT	0.313 INCHES MINIMUM AND
	0.328 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.928 INCHES MINIMUM AND
	0.940 INCHES MAXIMUM
INTERNAL DRIVE STYLE	SLOT
LOCKING FEATURE	DETENT BALL GRIP
GRIP LENGTH	1.500 INCHES MINIMUM AND
	1.516 INCHES MAXIMUM
GRIP DIAMETER	0.6236 INCHES MINIMUM AND
	0.6241 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
	32.0 MICROINCHES GRIP
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.172 INCHES MINIMUM AND
	2.192 INCHES MAXIMUM FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.141 INCHES MINIMUM AND
	0.151 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES	FURNISHED WITH ONE CRES SPINDLE

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