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National Stock Number:
5305-01-485-5818
Federal Supply Class:
5305
National Item Identification Number:
014855818
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.
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Manufacturer Information:
| 11827C4-9F | 59563 | REID PRODUCTS INC. | | 3M1169C4-9F | 76301 | THE BOEING COMPANY | | TX1026C4-9F | 06725 | SPS TECHNOLOGIES, LLC | | TX1026C4-9F | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1026C4-9F | 0PTK6 | SPS TECHNOLOGIES INC | | TX1026C4-9F | 27624 | SPS TECHNOLOGIES LLC | | TX1026C4-9F | 56878 | SPS TECHNOLOGIES, LLC | | TX1026C4-9F | 73197 | HI-SHEAR CORPORATION | | TX1026C4-9F | 80539 | SPS TECHNOLOGIES, LLC | | TX1026C4-9F | C4293 | ALCOA FASTENING SYSTEMS FAIRCHILDFASTENERS EUROPE - VSD GMBH | | TX1026C4-9F | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | CRITICALITY CODE JUSTIFICATION | AGAV | | FASTENER LENGTH | 0.9725 INCHES MINIMUM AND 1.0025 INCHES MAXIMUM | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM | | GRIP LENGTH | 0.5525 INCHES MINIMUM AND 0.5725 INCHES MAXIMUM | | HEAD DIAMETER | 0.470 INCHES MINIMUM AND 0.477 INCHES MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | TORX | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEG TENSION HEAD, GEAR DRIVE RECESS | | MATERIAL DOCUMENT AND CLASSIFICATION | AMC 5662, INCONEL 718 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY 718 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT STYLE | FLAT | | SINGLE SHEAR STRENGTH | 125000 POUNDS PER SQUARE INCH | | SPLINE MAJOR DIAMETER | 0.2195 INCHES MINIMUM AND 0.2225 INCHES MAXIMUM | | SPLINE MINOR DIAMETER | 0.1570 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83488, TYPE II, CLASS 3 MIL SPEC ALL TREATMENT RESPONSES OVERALL | | SURFACE TREATMENT | ALUMINUM AND CHROMATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3A | | THREAD LENGTH | 0.425 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNJF | | THREAD QUANTITY PER INCH | 28 |
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