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National Stock Number:
5305-01-452-9639
Federal Supply Class:
5305
National Item Identification Number:
014529639
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:
| 12973130 | 19200 | US ARMY ARDEC RDECOM | | 12973130 | 1S002 | CHARLES REED KNIGHT JR |
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Techincal Specification:
| HEAD HEIGHT | 0.188 INCHES NOMINAL | | HEAD STYLE | FLAT CHAMFER | | INTERNAL DRIVE STYLE | HEXAGON | | LOCKING FEATURE | PATCH FASTENER | | MATERIAL DOCUMENT AND CLASSIFICATION | AMSI B18.3-1986 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-53022 ASSN STD SINGLE TREATMENT RESPONSE OVERALL OR MIL-P-53030 ASSN STD SINGLE TREATMENT RESPONSE OVERALL OR MIL-P-53084 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PRIMER OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 32 |
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