NSN 5305-01-439-8417

Part Details | SOCKET HEAD CAP SCREW

5305-01-439-8417 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: 91251A190, PWA8200123, PWA82001-23, 5305-01-439-8417, 01-439-8417, 5305014398417, 014398417

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 20, 199601-439-841716282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-439-8417
Part Number Cage Code Manufacturer
91251A19039428MCMASTER-CARR SUPPLY COMPANY
PWA82001-2377445UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS
Technical Data | NSN 5305-01-439-8417
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.164 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.188 INCHES MAXIMUM
FASTENER LENGTH0.250 INCHES NOMINAL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD STYLE9 CROWNED HEXAGON
HEAD DIAMETER0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.141 INCHES NOMINAL