5305-01-027-4665, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-027-4665

Federal Supply Class:
5305

National Item Identification Number:
010274665

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:

NAS1123E19H	04348	LAWRENCE ENGINEERING AND SUPPLY INC
NAS1123E19H	07851	NOR-CAL SUPPLY CO
NAS1123E19H	08938	AIR INDUSTRIES CO INC
NAS1123E19H	17446	HUCK INTERNATIONAL, INC
NAS1123E19H	30485	QUALIFIED AIR COMPONENTS INC.
NAS1123E19H	30902	F AND C SALES INC
NAS1123E19H	50568	APCOM INC
NAS1123E19H	53606	PLASTIC AND METAL PRODUCTS CORPORATION
NAS1123E19H	56878	SPS TECHNOLOGIES, LLC
NAS1123E19H	58998	FASTENER INNOVATION TECHNOLOGY, INC.
NAS1123E19H	73197	HI-SHEAR CORPORATION
NAS1123E19H	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
NAS1123E19H	80539	SPS TECHNOLOGIES, LLC
NAS1123E19H	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
NAS1123E19H	97928	HUCK INTL INC
NAS1123E19H	L4528	LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC

Techincal Specification:

FASTENER LENGTH	1.449 INCHES MINIMUM AND 1.479 INCHES MAXIMUM
GRIP DIAMETER	0.1881 INCHES MINIMUM AND 0.1887 INCHES MAXIMUM
GRIP LENGTH	1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM
HEAD HEIGHT	0.103 INCHES MINIMUM AND 0.118 INCHES MAXIMUM
HEAD DIAMETER	0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
HOLE DIAMETER	0.034 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	IRON ALLOY 660 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
SPECIFICATION/STANDARD DATA	80205-NAS1123 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD LENGTH	0.251 INCHES MINIMUM AND 0.301 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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