NSN 5305-00-143-2912

Part Details | SOCKET HEAD CAP SCREW

5305-00-143-2912 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: FFS86, 1545599PC29, 5305-00-143-2912, 00-143-2912, 5305001432912, 001432912

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 23, 196800-143-291216282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-00-143-2912
Part Number Cage Code Manufacturer
FFS8681348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
1545599PC2910001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 5305-00-143-2912
Characteristic Specifications
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.413 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
FASTENER LENGTH0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH130000 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 FLATS0.187 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA6 TYPE
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY LOCKING FEATURE