Part Details | SOCKET HEAD CAP SCREW
5305-01-255-3590 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: 3M99147, 3M991-4-7, 3M99147, 3M991-4-7, 3M99147, 3M991-4-7, 3M99147, 3M991-4-7, 5305-01-255-3590, 01-255-3590, 5305012553590, 012553590
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 19, 1987 | 01-255-3590 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
HEXAGON
Cross Reference | NSN 5305-01-255-3590
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 3M991-4-7 | 76301 | BOEING COMPANY, THEDBA BOEING |
| 3M991-4-7 | 82896 | SAFETY SOCKET LLC |
| 3M991-4-7 | 56878 | SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION |
| 3M991-4-7 | 45722 | USM CORPSUB OF EMHART INDUSTRIES INC |
Technical Data | NSN 5305-01-255-3590
| 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 | 0.390 INCHES MINIMUM AND 0.460 INCHES MAXIMUM |
| FASTENER LENGTH | 0.838 INCHES MINIMUM AND 0.888 INCHES MAXIMUM |
| 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 |
| SPECIAL FEATURES | OPTIONAL KNURLED HEAD |