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National Stock Number:
5305-00-007-2955
Federal Supply Class:
5305
National Item Identification Number:
000072955
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| NAS1743C4T12U | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNJF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.663 INCHES MINIMUM AND | | 0.766 INCHES MAXIMUM | | FASTENER LENGTH | 0.734 INCHES MINIMUM AND | | 0.766 INCHES MAXIMUM | | MATERIAL | IRON ALLOY 660 OVERALL | | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT CHAMFER | | HEAD DIAMETER | 0.367 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM | | HEAD HEIGHT | 0.133 INCHES MINIMUM AND | | 0.150 INCHES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | LOCKING FEATURE | PATCH THREADS | | SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD | | 32.0 MICROINCHES THREADS | | SPECIFICATION/STANDARD DATA | 80205-NAS1743 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
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