5998-01-469-2876 CIRCUIT CARD ASSEMBLY Index 1560-01-469-2878 COVER,ACCESS,AIRCRAFT

National Stock Number:
5305-01-469-2877

Federal Supply Class:
5305

National Item Identification Number:
014692877

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:
11825V4-10A59563REID PRODUCTS INC.
11845V4-10A59563REID PRODUCTS INC.
3M1170V4-10A06710VALLEY-TODECO, INC.
3M1170V4-10A0K6Z0SATURN FASTENERS INC
3M1170V4-10A0ZC92HEARTLAND PRECISION FASTENERS INC
3M1170V4-10A1VSL7HOUSTON PRECISION FASTENERS I LP
TX1027V4-10A06725SPS TECHNOLOGIES, LLC
TX1027V4-10A06950HOWMET GLOBAL FASTENING SYSTEMS INC
TX1027V4-10A17446HUCK INTERNATIONAL, INC
GS1014V4-10A1EM77B & B SPECIALTIES INC
TX1027V4-10A27624SPS TECHNOLOGIES LLC
TX1027V4-10A56878SPS TECHNOLOGIES, LLC
3M1170V4-10A58998FASTENER INNOVATION TECHNOLOGY, INC.
3M1170V4-10A76301THE BOEING COMPANY
TX2017V4-10A56878SPS TECHNOLOGIES, LLC
WC1170V4-10A60516WEST COAST AEROSPACE, INC.
TX1027V4-10A73197HI-SHEAR CORPORATION
TX1027V4-10A80539SPS TECHNOLOGIES, LLC
TX1027V4019A80539SPS TECHNOLOGIES, LLC
TX1027V4-10A92215HOWMET GLOBAL FASTENING SYSTEMS INC
TX1027V4-10AC4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
TX1027V4-10AL4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONAGAV
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH1.050 INCHES NOMINAL
GRIP LENGTH0.625 INCHES NOMINAL
GRIP DIAMETER0.249 INCHES NOMINAL
HEAD DIAMETER0.358 INCHES MINIMUM AND 0.365 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLETORX
MATERIALTITANIUM OVERALL
MINIMUM TENSILE STRENGTH3200 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT, 100 DEGREE REDUCED HEAD, GEAR DRIVE RECESS - PH13-8MO (125 KSI SHEAR), INCONEL 718 (125 KSI SHEAR), 6AL-4V TITANIUM (95 KSI SHEAR).
SPECIAL FEATURES95 KSI SHEAR STRENGTH
POINT STYLEFLAT
POINT DIAMETER0.425 INCHES NOMINAL
SPLINE MAJOR DIAMETER0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.425 INCHES NOMINAL
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNJF


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