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National Stock Number:
5305-01-528-6991
Federal Supply Class:
5305
National Item Identification Number:
015286991
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:
| 3D0172-08-7-11 | 88277 | THE BOEING COMPANY | | CA21088-08-7-11 | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE | | FIT7693-08-7-11 | 58998 | FASTENER INNOVATION TECHNOLOGY, INC. | | FT1193-8-7-11 | 58794 | FASTENER TECHNOLOGY CORP |
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Techincal Specification:
| FASTENER LENGTH | 0.790 INCHES NOMINAL | | GRIP DIAMETER | 0.1630 INCHES NOMINAL | | GRIP LENGTH | 0.216 INCHES NOMINAL | | HEAD HEIGHT | 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CLOSE TOLERANCE | | PROPRIETARY CHARACTERISTICS | PACS | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | WIDTH BETWEEN FLATS | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.471 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 32 |
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