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National Stock Number:
5305-00-030-4510
Federal Supply Class:
5305
National Item Identification Number:
000304510
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:
| 3MFRA583-5 | 34087 | KITCO LLC | | 3MFRA583-5 | 56540 | ASSOCIATED AIRCRAFT MANUFACTURING & SALES, INC. | | 3MFRA583-5 | 76301 | THE BOEING COMPANY | | 3MFRA583-5 | 8X044 | DERCO AEROSPACE, INC. |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.190 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.356 INCHES NOMINAL | | FASTENER LENGTH | 0.719 INCHES NOMINAL | | MATERIAL | STEEL COMP 4130 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM HEAD | | PRIMER BEARING SURFACE OF HEAD | | CADMIUM GRIP | | CADMIUM THREADS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE AND | | PS13421 FSCM 76301 MFR REF 2ND TREATMENT RESPONSE HEAD | | QQ-P-416,TYPE 2,CLASS 3 MFR REF SINGLE TREATMENT RESPONSE AND | | PS13421 FSCM 76301 MFR REF 2ND TREATMENT RESPONSE BEARING SURFACE OF HEAD | | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE AND | | PS13421 FSCM 76301 MFR REF 2ND TREATMENT RESPONSE GRIP | | PS13421 FSCM 76301 MFR REF 2ND TREATMENT RESPONSE THREADS | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.376 INCHES MINIMUM AND | | 0.381 INCHES MAXIMUM | | COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL | | INTERNAL DRIVE STYLE | HIGH-TORQUE | | GRIP LENGTH | 0.302 INCHES MINIMUM AND | | 0.322 INCHES MAXIMUM | | GRIP DIAMETER | 0.1885 INCHES MINIMUM AND | | 0.1895 INCHES MAXIMUM | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES GRIP | | 125.0 MICROINCHES TOP OF HEAD | | 32.0 MICROINCHES THREADS | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 76301 | | DESIGN CONTROL REFERENCE | 3MFRA583-5 |
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