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National Stock Number:
5305-01-604-2872
Federal Supply Class:
5305
National Item Identification Number:
016042872
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:
| 3M1277E4D14A | 76301 | THE BOEING COMPANY | | TX1027E4D14XA | 06725 | SPS TECHNOLOGIES, LLC | | TX1027E4D14XA | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | TX1027E4D14XA | 27624 | SPS TECHNOLOGIES LLC | | TX1027E4D14XA | 56878 | SPS TECHNOLOGIES, LLC | | TX1027E4D14XA | 73197 | HI-SHEAR CORPORATION | | TX1027E4D14XA | 80539 | SPS TECHNOLOGIES, LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.41 INCHES MINIMUM AND | | 0.44 INCHES MAXIMUM | | FASTENER LENGTH | 1.285 INCHES MINIMUM AND | | 1.315 INCHES MAXIMUM | | MATERIAL | NICKEL ALLOY OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5662 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-L-87132 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT | | HEAD DIAMETER | 0.3859 INCHES MINIMUM AND | | 0.3948 INCHES MAXIMUM | | HEAD INSIDE DIAMETER | 0.358 INCHES MINIMUM AND | | 0.365 INCHES MAXIMUM | | HEAD HEIGHT | 0.057 INCHES NOMINAL | | COUNTERSINK ANGLE | 99.00 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | TORX | | SPLINE MAJOR DIAMETER | 0.1100 INCHES MINIMUM AND | | 0.1120 INCHES MAXIMUM | | GRIP LENGTH | 0.865 INCHES MINIMUM AND | | 0.885 INCHES MAXIMUM | | GRIP DIAMETER | 0.2646 INCHES MINIMUM AND | | 0.2651 INCHES MAXIMUM | | FEATURES PROVIDED | CETYL ALCOHOL LUBRICANT | | SPECIAL FEATURES | PASSIVATE PLUS CETYL ALCOHOL PER MIL-L-87132,TYPE 1,GRADE B.SEE TECH DATA FOR ALL INFO ABOUT FINISH AND ANY OTHER ADDITIONAL DETAILS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,100DEG REDUCED HEAD,GEAR DRIVE RECESS,INCONEL 718(125KSI SHEAR),0.0156 INCH OVERSIZE |
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