1560-01-526-3949 FAIRING,AIRCRAFT Index 1560-01-526-3951 STRUCTURAL SECTION,

National Stock Number:
5305-01-526-3950

Federal Supply Class:
5305

National Item Identification Number:
015263950

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:
11845C5-10A59563REID PRODUCTS INC.
3M1170C5-10A06710VALLEY-TODECO, INC.
3M1170C5-10A0K6Z0SATURN FASTENERS INC
3M1170C5-10A0ZC92HEARTLAND PRECISION FASTENERS INC
3M1170C5-10A1VSL7HOUSTON PRECISION FASTENERS I LP
3M1170C5-10A58998FASTENER INNOVATION TECHNOLOGY, INC.
3M1170C5-10A76301THE BOEING COMPANY
GS1014C5-10A1EM77B & B SPECIALTIES INC
TX1027C5-10A06725SPS TECHNOLOGIES, LLC
TX1027C5-10A06950HOWMET GLOBAL FASTENING SYSTEMS INC
TX1027C5-10A0PTK6SPS TECHNOLOGIES INC
TX1027C5-10A17446HUCK INTERNATIONAL, INC
TX1027C5-10A27624SPS TECHNOLOGIES LLC
TX1027C5-10A56878SPS TECHNOLOGIES, LLC
TX1027C5-10A73197HI-SHEAR CORPORATION
TX1027C5-10A80539SPS TECHNOLOGIES, LLC
TX1027C5-10A92215HOWMET GLOBAL FASTENING SYSTEMS INC
TX1027C5-10AC4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
TX1027C5-10AL4528LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC
WC1170C5-10A60516WEST COAST AEROSPACE, INC.


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH1.079 INCHES MINIMUM AND 1.109 INCHES MAXIMUM
GRIP DIAMETER0.312 INCHES NOMINAL
GRIP LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
HEAD DIAMETER0.464 INCHES MINIMUM AND 0.473 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLETORX
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT, 100 DEGREE REDUCED HEAD, GEAR DRIVE RECESS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 718 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
SPECIAL FEATURES125 KSI SHEAR STRENGTH
POINT STYLEFLAT
POINT DIAMETER0.469 INCHES NOMINAL
SPLINE MAJOR DIAMETER0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.464 INCHES MINIMUM AND 0.474 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH24


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