NSN 5305-01-381-9856

Part Details | SOCKET HEAD CAP SCREW

5305-01-381-9856 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: 1241259704, 12412597-04, 1241259704, 12412597-04, 1241259704, 12412597-04, 1241259704, 12412597-04, 5305-01-381-9856, 01-381-9856, 5305013819856, 013819856

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 26, 199301-381-985616282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HEXAGON

Cross Reference | NSN 5305-01-381-9856
Part Number Cage Code Manufacturer
12412597-04076M6BAE SYSTEMS LAND & ARMAMENTS L.P.
12412597-040FW39BAE SYSTEMS TACTICAL VEHICLE SYSTEMSLP
12412597-049F476EMANON AIRCRAFT FASTENERS
12412597-0419207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 5305-01-381-9856
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.129 INCHES NOMINAL
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.600 INCHES MINIMUM AND 0.656 INCHES MAXIMUM
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.188 INCHES NOMINAL