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National Stock Number:
5305-01-599-5426
Federal Supply Class:
5305
National Item Identification Number:
015995426
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:
| PMT1123-15 | 05755 | PHILLIPS SCREW CO RULE INDUSTRIES DIV | | PMT1123-15 | 06710 | VALLEY-TODECO, INC. | | PMT1123-15 | 06725 | SPS TECHNOLOGIES, LLC | | PMT1123-15 | 17446 | HUCK INTERNATIONAL, INC | | PMT1123-15 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | PMT1123-15 | 56878 | SPS TECHNOLOGIES, LLC | | PMT1123-15 | 80539 | SPS TECHNOLOGIES, LLC | | PMT1123-15 | 82224 | JOHN HASSALL, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.189 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.276 INCHES NOMINAL | | FASTENER LENGTH | 1.214 INCHES NOMINAL | | MATERIAL | STEEL COMP 4140 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | HEAD STYLE | FILLISTER | | HEAD DIAMETER | 0.310 INCHES NOMINAL | | HEAD HEIGHT | 0.109 INCHES NOMINAL | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | PART NAME ASSIGNED BY CONTROLLING AGENCY | MORTORQ, SPIRAL DRIVE, SCREW MACHINE-FLAT FILLISTER HEAD, CLOSE TOL. SHORT THREAD |
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