NSN 5305-00-057-4520

Part Details | SOCKET HEAD CAP SCREW

5305-00-057-4520 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: CA2730411, CA2730-4-11, AS1040411, AS104-04-11, CC00035411, CC00035-4-11, 5305-00-057-4520, 00-057-4520, 5305000574520, 000574520

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUN 01, 196700-057-452016282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-00-057-4520
Part Number Cage Code Manufacturer
CA2730-4-1129372ARCONIC GLOBAL FASTENERS & RINGS,INC.
AS104-04-1184256AVIBANK MFG., INC.
CC00035-4-1181755LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS
Technical Data | NSN 5305-00-057-4520
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.270 INCHES MINIMUM AND 0.290 INCHES MAXIMUM
FASTENER LENGTH1.146 INCHES NOMINAL
HEAD STYLE9 CROWNED HEXAGON
HEAD DIAMETER0.3742 INCHES MINIMUM AND 0.3747 INCHES MAXIMUM
HEAD HEIGHT0.253 INCHES MINIMUM AND 0.273 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.1875 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM