NSN 5305-01-121-0343

Part Details | SOCKET HEAD CAP SCREW

5305-01-121-0343 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: CA2113146HS, CA21131-4-6HS, 5305-01-121-0343, 01-121-0343, 5305011210343, 011210343

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 29, 198101-121-034316282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HEXAGON

Cross Reference | NSN 5305-01-121-0343
Part Number Cage Code Manufacturer
CA21131-4-6HS29372ARCONIC GLOBAL FASTENERS & RINGS,INC.
Technical Data | NSN 5305-01-121-0343
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.477 INCHES MINIMUM AND 0.636 INCHES MAXIMUM
FASTENER LENGTH1.047 INCHES MINIMUM AND 1.067 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH140000 POUNDS PER SQUARE INCH
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.360 INCHES MINIMUM AND 0.404 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.156 INCHES NOMINAL
SPECIAL FEATURESTHREADS TO BE DOUBLE LEAD