NSN 5305-01-439-5179

Part Details | SOCKET HEAD CAP SCREW

5305-01-439-5179 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.

Alternate Parts: 5616404325100, 561-6404325-100, 211040506, 5305-01-439-5179, 01-439-5179, 5305014395179, 014395179

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 11, 199601-439-517916282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-439-5179
Part Number Cage Code Manufacturer
561-6404325-10053711NAVAL SEA SYSTEMS COMMAND
21104050653711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 5305-01-439-5179
Characteristic Specifications
THREAD SERIES DESIGNATOR UNRC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.000 INCHES NOMINAL
FASTENER LENGTH1.000 INCHES NOMINAL
HEAD STYLE8 CROWNED HEXAGON
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.216 INCHES NOMINAL