NSN 5305-01-191-4578

Part Details | SOCKET HEAD CAP SCREW

5305-01-191-4578 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, MS1699720L, MS16997-20L, 5305-01-191-4578, 01-191-4578, 5305011914578, 011914578

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53OCT 08, 198401-191-457816282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

HEXAGON

Cross Reference | NSN 5305-01-191-4578
Part Number Cage Code Manufacturer
FF-S-8681348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
MS16997-20L96906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5305-01-191-4578
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.407 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
FASTENER LENGTH0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH1550000 POUNDS PER SQUARE INCH
HEAD STYLE9 CROWNED HEXAGON
HEAD DIAMETER0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
HEAD HEIGHT0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.1094 INCHES MINIMUM AND 0.1111 INCHES MAXIMUM
NONDEFINITIVE SPEC/STD DATA6 TYPE