5305-01-424-1364, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-424-1364

Federal Supply Class:
5305

National Item Identification Number:
014241364

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:

122966AD-3-43	80539	SPS TECHNOLOGIES, LLC
GB511DU3-43D	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
SC2174-3-43D	06950	HOWMET GLOBAL FASTENING SYSTEMS INC
PBF1355A3D-43	27624	SPS TECHNOLOGIES LLC
MATP111AD-3-43	58845	ABOUNDING SECURITY INC DIV OF MAA CORP
HR217-3-43D	73197	HI-SHEAR CORPORATION

Techincal Specification:

THREAD SERIES DESIGNATOR	UNJF
NOMINAL THREAD DIAMETER	0.190 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.363 INCHES NOMINAL
FASTENER LENGTH	3.036 INCHES MINIMUM AND
	3.066 INCHES MAXIMUM
MATERIAL	STEEL COMP E4340 OR
	STEEL COMP 4140 OR
	STEEL COMP 8740 OR
	STEEL COMP 8735 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR
	MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR
	MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR
	MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
HEAD STYLE	PAN NO. 2
HEAD DIAMETER	0.360 INCHES MINIMUM AND
	0.374 INCHES MAXIMUM
HEAD HEIGHT	0.115 INCHES MINIMUM AND
	0.125 INCHES MAXIMUM
INTERNAL DRIVE STYLE	TORQUE-SET RIBBED
GRIP LENGTH	2.678 INCHES MINIMUM AND
	2.698 INCHES MAXIMUM
GRIP DIAMETER	0.1885 INCHES MINIMUM AND
	0.1895 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
	32.0 MICROINCHES GRIP
	32.0 MICROINCHES THREADS
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.935 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES MINIMUM AND
	0.080 INCHES MAXIMUM FIRST HOLE

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