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National Stock Number:
5305-00-323-2456
Federal Supply Class:
5305
National Item Identification Number:
003232456
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:
| 3MA586-19T | 73197 | HI-SHEAR CORPORATION | | 3MA586-19T | 76301 | THE BOEING COMPANY | | 3MFRA586-19T | 76301 | THE BOEING COMPANY | | 3MA586-19T | 80539 | SPS TECHNOLOGIES, LLC | | 3MA586-19T | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 3MA586-19T | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| FASTENER LENGTH | 1.814 INCHES MINIMUM AND 1.844 INCHES MAXIMUM | | GRIP LENGTH | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.717 INCHES MINIMUM AND 0.760 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
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