5305-01-477-5624 SCREW,CLOSE TOLERANCE Index 5305-01-477-5626 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-477-5625

Federal Supply Class:
5305

National Item Identification Number:
014775625

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:
11925C6-18A59563REID PRODUCTS INC.
HT4020-6-18A06725SPS TECHNOLOGIES, LLC
HT4020-6-18A06950HOWMET GLOBAL FASTENING SYSTEMS INC
HT4020-6-18A0PTK6SPS TECHNOLOGIES INC
HT4020-6-18A17446HUCK INTERNATIONAL, INC
HT4020-6-18A27624SPS TECHNOLOGIES LLC
ST3M652C6-18A06710VALLEY-TODECO, INC.
ST3M652C6-18A0ZC92HEARTLAND PRECISION FASTENERS INC
HT4020-6-18A56878SPS TECHNOLOGIES, LLC
HT4020-6-18A73197HI-SHEAR CORPORATION
HT4020-6-18A80539SPS TECHNOLOGIES, LLC
HT4020-6-18A92215HOWMET GLOBAL FASTENING SYSTEMS INC
HT4020-6-18AK5673SPS TECHNOLOGIES LTD TJ BROOKS DIVISION
HT4020-6-18AL4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
ST3M652C6-18A1VSL7HOUSTON PRECISION FASTENERS I LP
ST3M652C6-18A58998FASTENER INNOVATION TECHNOLOGY, INC.
WC4020-6-18A60516WEST COAST AEROSPACE, INC.
ST3M652C6-18A76301THE BOEING COMPANY


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
CRITICALITY CODE JUSTIFICATIONAGAV
FASTENER LENGTH1.750 INCHES MINIMUM AND 1.797 INCHES MAXIMUM
HEAD HEIGHT0.115 INCHES MINIMUM AND 0.117 INCHES MAXIMUM
HEAD DIAMETER0.756 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLEHIGH-TORQUE
PART NAME ASSIGNED BY CONTROLLING AGENCYHI-TORQUE BOLT,100 DEGREE FLUSH SEALING HEAD CLOSE TOLERANCE
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER0.375 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH0.641 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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