5305-01-266-8396, SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-266-8396

Federal Supply Class:
5305

National Item Identification Number:
012668396

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:

11907-3LD-25-1	59563	REID PRODUCTS INC.
HT4024L3D25-1	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
HT4024L3D25-1	06950	HOWMET GLOBAL FASTENING SYSTEMS INC
HT4024L3D25-1	17446	HUCK INTERNATIONAL, INC
HT4024L3D25-1	73197	HI-SHEAR CORPORATION
HT4024L3D25-1	80539	SPS TECHNOLOGIES, LLC
HT4024L3D25-1	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
HT4024L3D25-1	97928	HUCK INTL INC
HT4024L3D25-1	L4528	LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
ST3M455-3LD-25-1	76301	THE BOEING COMPANY
ST3M557-3D25	56878	SPS TECHNOLOGIES, LLC
ST3M557-3D25	58998	FASTENER INNOVATION TECHNOLOGY, INC.

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.832 INCHES MINIMUM AND 1.872 INCHES MAXIMUM FIRST HOLE
COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH	1.953 INCHES MINIMUM AND 1.983 INCHES MAXIMUM
GRIP DIAMETER	0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
GRIP LENGTH	1.552 INCHES MINIMUM AND 1.572 INCHES MAXIMUM
HEAD DIAMETER	0.297 INCHES MINIMUM AND 0.302 INCHES MAXIMUM
HEAD HEIGHT	0.013 INCHES MAXIMUM
HEAD STYLE	FILLISTER COUNTERSUNK
INTERNAL DRIVE STYLE	HIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP XM-13 OVERALL
MINIMUM TENSILE STRENGTH	125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
SHANK UNTHREADED HOLE DIAMETER	0.070 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST HOLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.381 INCHES MINIMUM AND 0.431 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNJF

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