NSN 5305-01-423-5991

Part Details | SOCKET HEAD CAP SCREW

5305-01-423-5991 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: 556640916020, 556-6409160-20, 211068833, 5305-01-423-5991, 01-423-5991, 5305014235991, 014235991

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 03, 199601-423-599116282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-423-5991
Part Number Cage Code Manufacturer
556-6409160-2053711NAVAL SEA SYSTEMS COMMAND
21106883353711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 5305-01-423-5991
Characteristic Specifications
THREAD SERIES DESIGNATOR UNRC
NOMINAL THREAD DIAMETER0.750 INCHES
THREAD QUANTITY PER INCH10
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.750 INCHES NOMINAL
FASTENER LENGTH1.750 INCHES NOMINAL
HEAD STYLE8 CROWNED HEXAGON
HEAD DIAMETER1.107 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
HEAD HEIGHT0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.625 INCHES NOMINAL