5305-01-007-7063, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-007-7063

Federal Supply Class:
5305

National Item Identification Number:
010077063

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:

BM19045-3-10	17446	HUCK INTERNATIONAL, INC
BM19045-3-10	97928	HUCK INTL INC
GB510CE7-10	06950	HOWMET GLOBAL FASTENING SYSTEMS INC
GB510CE7-10	26512	NORTHROP GRUMMAN SYSTEMS CORPORATION
GB510CE7-10	27624	SPS TECHNOLOGIES LLC
GB510CE7-10	73197	HI-SHEAR CORPORATION
SFH22D3-10	56878	SPS TECHNOLOGIES, LLC
SFH22D3-10	80539	SPS TECHNOLOGIES, LLC
HT8181F7-10	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
GB510CE7-10	L4528	LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.125 INCHES NOMINAL FIRST HOLE
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH	1.075 INCHES MINIMUM AND 1.122 INCHES MAXIMUM
GRIP LENGTH	0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
GRIP DIAMETER	0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.825 INCHES MINIMUM AND 0.890 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	HIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH	132000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.438 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
SHANK UNTHREADED HOLE DIAMETER	0.106 INCHES NOMINAL FIRST HOLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-8837 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OR NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD LENGTH	0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	20

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