5305-00-792-8742, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-00-792-8742

Federal Supply Class:
5305

National Item Identification Number:
007928742

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:

51B333-13H	06725	SPS TECHNOLOGIES, LLC
51B333-13H	0JRC1	NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
51B333-13H	27624	SPS TECHNOLOGIES LLC
51B333-13H	56878	SPS TECHNOLOGIES, LLC
51B333-13H	73197	HI-SHEAR CORPORATION
51B333-13H	76823	NORTHROP GRUMMAN SYSTEMS CORPORATION
51B333-13H	79U29	NORTHROP GRUMMAN SYSTEMS CORPORATION
51B333-13H	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
51B333-13H	L4528	LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.945 INCHES MINIMUM AND 1.012 INCHES MAXIMUM FIRST HOLE
COUNTERSINK ANGLE	99.5 DEGREES MINIMUM AND 100.5 DEGREES MAXIMUM
FASTENER LENGTH	1.072 INCHES MINIMUM AND 1.119 INCHES MAXIMUM
GRIP DIAMETER	0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH	0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM
HEAD DIAMETER	0.377 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
MATERIAL	STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES NOMINAL FIRST HOLE
SPECIFICATION/STANDARD DATA	76823-51B333 MANUFACTURERS STANDARD
SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD LENGTH	0.250 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	32

Click here to Register for Free 30-day Trial