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National Stock Number:
5305-01-143-8154
Federal Supply Class:
5305
National Item Identification Number:
011438154
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:
| 1189229-6-12 | 05824 | AEROJET ROCKETDYNE INC | | 122412-6-12 | 80539 | SPS TECHNOLOGIES, LLC | | HT8211-6-12 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | EXTERNAL THREAD TOLERANCE CLASS | 4H | | FASTENER LENGTH | 26.0 MILLIMETERS NOMINAL | | FEATURES PROVIDED | DRY FILM LUBRICANT | | GRIP DIAMETER | 5.965 MILLIMETERS MINIMUM AND 5.990 MILLIMETERS MAXIMUM | | GRIP LENGTH | 11.75 MILLIMETERS MINIMUM AND 12.25 MILLIMETERS MAXIMUM | | HEAD DIAMETER | 10.8 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM | | HEAD STYLE | FLAT COUNTERSUNK | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 1100 MEGAPASCALS | | NOMINAL THREAD DIAMETER | 6.0 MILLIMETERS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 13.75 MILLIMETERS MINIMUM AND 14.25 MILLIMETERS MAXIMUM | | THREAD SERIES DESIGNATOR | M | | THREAD PITCH IN MILLIMETERS | 1.0 |
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