5305-01-164-9729, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-164-9729

Federal Supply Class:
5305

National Item Identification Number:
011649729

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:

106706T-7-29D	56878	SPS TECHNOLOGIES, LLC
106706T-7-29D	80539	SPS TECHNOLOGIES, LLC
GB510CE7-29D	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
GB510FD7-29D	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
HR204-7-29D	73197	HI-SHEAR CORPORATION
HR204-7-29D	L4528	LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
PBF1202-7-29D	27624	SPS TECHNOLOGIES LLC
SC1779-7-29D	06950	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.153 INCHES NOMINAL FIRST HOLE
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH	2.461 INCHES MINIMUM AND 2.508 INCHES MAXIMUM
GRIP DIAMETER	0.7782 INCHES MINIMUM AND 0.7784 INCHES MAXIMUM
GRIP LENGTH	1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.826 INCHES MINIMUM AND 0.888 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH	220000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.438 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.096 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	NAS672 ASSN STD 1ST TREATMENT RESPONSE OR MIL-C-8837,TY 2,CL 3 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OR CADMIUM AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.639 INCHES MINIMUM AND 0.706 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNJF

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