NSN 5305-01-030-0551

Part Details | SOCKET HEAD CAP SCREW

5305-01-030-0551 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: 317207C587, 317207-C-587, 3176207C587, 3176207-C-587, 3176207C587, 3176207-C-587, 5305-01-030-0551, 01-030-0551, 5305010300551, 010300551

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 27, 197601-030-055116282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-030-0551
Part Number Cage Code Manufacturer
317207-C-58744114BAE SYSTEMS LAND & ARMAMENTS L.P.
3176207-C-58710001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
3176207-C-58753711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 5305-01-030-0551
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.525 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
FASTENER LENGTH0.625 INCHES NOMINAL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
HEAD STYLE9 CROWNED HEXAGON
HEAD DIAMETER0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.188 INCHES NOMINAL