1680-01-500-8226 BACKING BOARD,LEAK, Index 5305-01-500-8228 SCREW,CLOSE TOLERANCE

National Stock Number:
5305-01-500-8227

Federal Supply Class:
5305

National Item Identification Number:
015008227

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:
11825C4-8A59563REID PRODUCTS INC.
11825D4-8A59563REID PRODUCTS INC.
3M1170C4-8A007R1TWIST TITE MFG, INC
3M1170C4-8A06710VALLEY-TODECO, INC.
11845C4-8A59563REID PRODUCTS INC.
11845D4-8A59563REID PRODUCTS INC.
3M1170D4-8A06710VALLEY-TODECO, INC.
3M1170D4-8A0K6Z0SATURN FASTENERS INC
3M1170C4-8A0K6Z0SATURN FASTENERS INC
3M1170C4-8A0ZC92HEARTLAND PRECISION FASTENERS INC
3M1170C4-8A1VSL7HOUSTON PRECISION FASTENERS I LP
3M1170C4-8A58998FASTENER INNOVATION TECHNOLOGY, INC.
3M1170C4-8A59998TRIKORIUM CORP
3M1170C4-8A76301THE BOEING COMPANY
TX1027C4-8A06725SPS TECHNOLOGIES, LLC
TX1027C4-8A06950HOWMET GLOBAL FASTENING SYSTEMS INC
3M1170D4-8A0ZC92HEARTLAND PRECISION FASTENERS INC
HP1170D4-80ZC92HEARTLAND PRECISION FASTENERS INC
TX1027C4-8A17446HUCK INTERNATIONAL, INC
GS1014C4-8A1EM77B & B SPECIALTIES INC
GS1014D4-8A1EM77B & B SPECIALTIES INC
3M1170D4-8A1VSL7HOUSTON PRECISION FASTENERS I LP
TX1027C4-8A27624SPS TECHNOLOGIES LLC
TX1027C4-8A56878SPS TECHNOLOGIES, LLC
3M1170D4-8A58998FASTENER INNOVATION TECHNOLOGY, INC.
TX1027C4-8A73197HI-SHEAR CORPORATION
3M1170D4-8A76301THE BOEING COMPANY
TX1027C4-8A80539SPS TECHNOLOGIES, LLC
TX1027C4-8A92215HOWMET GLOBAL FASTENING SYSTEMS INC
TX1027C4-8AC4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH
TX1027D4-8A06725SPS TECHNOLOGIES, LLC
TX1027D4-8A06950HOWMET GLOBAL FASTENING SYSTEMS INC
TX1027D4-8A0PTK6SPS TECHNOLOGIES INC
TX1027D4-8A17446HUCK INTERNATIONAL, INC
TX1027D4-8A27624SPS TECHNOLOGIES LLC
TX1027D4-8A56878SPS TECHNOLOGIES, LLC
WC1170C4-8A60516WEST COAST AEROSPACE, INC.
WC1170D4-8A60516WEST COAST AEROSPACE, INC.
TX1027D4-8A73197HI-SHEAR CORPORATION
TX1027D4-8A80539SPS TECHNOLOGIES, LLC
TX1027D4-8A92215HOWMET GLOBAL FASTENING SYSTEMS INC
TX1027D4-8AC4293ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
GRIP LENGTH0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
GRIP DIAMETER0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
HEAD DIAMETER0.358 INCHES MINIMUM AND 0.365 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLETORX
PART NAME ASSIGNED BY CONTROLLING AGENCYBOLT,100 DEGRE REDUCED HEAD,GEAR DRIVE RECESS-PH13-8MO(125 KSI SHEAR), INCONEL 718 (125 KSI SHEAR),6AL-4V TITANIUM (95 KSI SHEAR)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 718 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SPLINE MAJOR DIAMETER0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM
SPLINE MINOR DIAMETER0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.425 INCHES NOMINAL
THREAD SERIES DESIGNATORUNJF
THREAD QUANTITY PER INCH28


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