NSN 5305-01-081-2391

Part Details | SOCKET HEAD CAP SCREW

5305-01-081-2391 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: 3176209C150, 3176209-C-150, 5305-01-081-2391, 01-081-2391, 5305010812391, 010812391

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53AUG 10, 197901-081-239116282 ( SCREW, CAP, SOCKET HEAD )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HEXAGON

Cross Reference | NSN 5305-01-081-2391
Part Number Cage Code Manufacturer
3176209-C-15010001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 5305-01-081-2391
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH14
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.016 INCHES NOMINAL
FASTENER LENGTH1.250 INCHES NOMINAL
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.844 INCHES MAXIMUM
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE HEXAGON
WIDTH ACROSS FLATS0.250 INCHES NOMINAL
SPECIAL FEATURESCRITICAL ITEM HYDROGEN EMBRITTLEMENT RELIEF REQUIRED