Part Details | SOCKET HEAD CAP SCREW
5305-01-278-1991 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: CA21241C10311, CA21241C-10-3-11, C97473311, C9747-3-3-11, 5305-01-278-1991, 01-278-1991, 5305012781991, 012781991
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 03, 1988 | 01-278-1991 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
HEXAGON
Cross Reference | NSN 5305-01-278-1991
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| CA21241C-10-3-11 | 29372 | ARCONIC GLOBAL FASTENERS & RINGS,INC. |
| C9747-3-3-11 | 81755 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN AERONAUTICS |
Technical Data | NSN 5305-01-278-1991
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.432 INCHES MINIMUM AND 0.494 INCHES MAXIMUM |
| FASTENER LENGTH | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.305 INCHES MINIMUM AND 0.314 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL |
| SPECIAL FEATURES | TWO SLOT CUT OUT AT 180 DEGREES,0.608 IN. LENGTH,0.044MIN IN. AND 0.054 MAX IN. WIDTH |