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National Stock Number:
5305-00-054-4973
Federal Supply Class:
5305
National Item Identification Number:
000544973
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:
| 51B234-3 | 06725 | SPS TECHNOLOGIES, LLC | | 51B234-3 | 06950 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 51B234-3 | 0JRC1 | NORTHROP GRUMMAN TECHNICAL SERVICES, INC. | | 51B234-3 | 17446 | HUCK INTERNATIONAL, INC | | 51B234-3 | 27624 | SPS TECHNOLOGIES LLC | | 51B234-3 | 73197 | HI-SHEAR CORPORATION | | 51B234-3 | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 51B234-3 | 79U29 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 51B234-3 | 80539 | SPS TECHNOLOGIES, LLC | | 51B234-3 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC | | 51B234-3 | L4528 | LISI AEROSPACE CANADA CORP DIV HI SHEAR HOLDINGS INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.316 INCHES MINIMUM | | FASTENER LENGTH | 0.503 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | HEAD STYLE | FLAT COUNTERSUNK | | HEAD DIAMETER | 0.499 INCHES MINIMUM AND | | 0.507 INCHES MAXIMUM | | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND | | 101.0 DEGREES MAXIMUM | | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) | | LOCKING FEATURE | PATCH OR | | STRIP THREADS | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 76823 | | DESIGN CONTROL REFERENCE | 51B234-3 |
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