NSN 5305-01-399-0422

Part Details | SOCKET HEAD CAP SCREW

5305-01-399-0422 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: F52511164505, F525-11164-505, 5305-01-399-0422, 01-399-0422, 5305013990422, 013990422

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 16, 199401-399-042216282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HEXAGON

Cross Reference | NSN 5305-01-399-0422
Part Number Cage Code Manufacturer
F525-11164-50582918BOEING COMPANY, THEDBA BOEING
Technical Data | NSN 5305-01-399-0422
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.941 INCHES MINIMUM AND 1.052 INCHES MAXIMUM
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 MINIMUM