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National Stock Number:
5305-01-603-8154
Federal Supply Class:
5305
National Item Identification Number:
016038154
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:
| PMT8703-12 | 05755 | PHILLIPS SCREW CO RULE INDUSTRIES DIV | | PMT8703-12 | 06710 | VALLEY-TODECO, INC. | | PMT8703-12 | 06725 | SPS TECHNOLOGIES, LLC | | PMT8703-12 | 07ZN5 | NORTH-EAST FASTENERS CORP. | | PMT8703-12 | 1ER65 | 3-V FASTENER CO., INC. | | PMT8703-12 | 1RC86 | HOWMET GLOBAL FASTENING SYSTEMS INC | | PMT8703-12 | 56878 | SPS TECHNOLOGIES, LLC | | PMT8703-12 | 82224 | JOHN HASSALL, INC. | | PMT8703-12 | 98524 | MONOGRAM AEROSPACE FASTENERS, INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.19A INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.323 INCHES NOMINAL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.266 INCHES MINIMUM AND | | 0.303 INCHES MAXIMUM |
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