Part Details | SOCKET HEAD CAP SCREW
5305-01-439-6253 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: 1120579055, 112-0579-055, 1120579055, 112-0579-055, 1120579055, 112-0579-055, 1120579055, 112-0579-055, 5305-01-439-6253, 01-439-6253, 5305014396253, 014396253
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 13, 1996 | 01-439-6253 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
HEXAGON
DOUBLE HEXAGON FLATS
Cross Reference | NSN 5305-01-439-6253
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 112-0579-055 | 06950 | ARCONIC GLOBAL FASTENERS & RINGS,INC. |
| 112-0579-055 | 62206 | B & B SPECIALTIES, INC |
| 112-0579-055 | 94756 | BOEING COMPANY, THEDBA BOEING |
| 112-0579-055 | 06725 | SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES |
Technical Data | NSN 5305-01-439-6253
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.604 INCHES MAXIMUM |
| FASTENER LENGTH | 0.659 INCHES MINIMUM AND 0.691 INCHES MAXIMUM |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 9 CROWNED HEXAGON |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| HOLE CONFIGURATION STYLE | DOUBLE HEXAGON FLATS |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 4 |
| HOLE DIAMETER | 0.052 INCHES MINIMUM AND 0.058 INCHES MAXIMUM |