|
|
|
National Stock Number:
5305-00-086-7737
Federal Supply Class:
5305
National Item Identification Number:
000867737
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.
|
Manufacturer Information:
| S2329529-56 | 18355 | THE BOEING COMPANY | | S2329529-56 | 88277 | THE BOEING COMPANY |
|
Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.359 INCHES MINIMUM AND 3.390 INCHES MAXIMUM FIRST HOLE | | FASTENER LENGTH | 3.562 INCHES MINIMUM AND 3.594 INCHES MAXIMUM | | GRIP DIAMETER | 0.5611 INCHES MINIMUM AND 0.5616 INCHES MAXIMUM | | GRIP LENGTH | 3.046 INCHES MINIMUM AND 3.078 INCHES MAXIMUM | | HEAD DIAMETER | 1.016 INCHES MINIMUM | | HEAD HEIGHT | 0.297 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.562 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.141 INCHES NOMINAL FIRST HOLE | | SURFACE FINISH | 20.0 MICROINCHES GRIP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.373 INCHES MINIMUM AND 0.548 INCHES MAXIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNF |
|
|