NSN 5305-01-057-8844

Part Details | SOCKET HEAD CAP SCREW

5305-01-057-8844 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: 3176207C062, 3176207-C-062, 5305-01-057-8844, 01-057-8844, 5305010578844, 010578844

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 20, 197801-057-884416282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-057-8844
Part Number Cage Code Manufacturer
3176207-C-06210001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 5305-01-057-8844
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.190 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.750 INCHES NOMINAL
FASTENER LENGTH0.750 INCHES NOMINAL
HEAD STYLE4 CROWNED HEXAGON
HEAD DIAMETER0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD HEIGHT0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.156 INCHES NOMINAL
FEATURES PROVIDED CASEHARDENED
SPECIAL FEATURESCRITICAL ITEM HYDROGEN EMBRITTLEMENT RELIEF REQUIRED