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National Stock Number:
5305-01-518-5117
Federal Supply Class:
5305
National Item Identification Number:
015185117
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:
| NAS1189-4T20W | 80205 | NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE |
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Techincal Specification:
| DISTANCE FROM CENTERLINE TO FLAT | 0.247 INCHES NOMINAL | | FASTENER LENGTH | 1.188 INCHES MINIMUM AND 1.250 INCHES MAXIMUM | | HEAD DIAMETER | 0.325 INCHES NOMINAL | | HEAD HEIGHT | 0.106 INCHES NOMINAL | | HEAD STYLE | DEE | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 5520 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW SELF LOCKING FLAT | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.250 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNJF |
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