NSN 5305-01-389-8018

Part Details | SOCKET HEAD CAP SCREW

5305-01-389-8018 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, FF-S-86, 681728520, 6817285-20, 5305-01-389-8018, 01-389-8018, 5305013898018, 013898018

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 04, 199401-389-801816282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-389-8018
Part Number Cage Code Manufacturer
FF-S-8681348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
6817285-2053711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 5305-01-389-8018
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH11
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.750 INCHES MAXIMUM
FASTENER LENGTH1.750 INCHES NOMINAL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
HEAD STYLE9 CROWNED HEXAGON
HEAD DIAMETER0.921 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
HEAD HEIGHT0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.500 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA6 TYPE