Part Details | THUMBSCREW
5305-00-568-2318 An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).
Alternate Parts: P249A7044REV1, 5305-00-568-2318, 00-568-2318, 5305005682318, 005682318
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-568-2318 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
FLAT
Cross Reference | NSN 5305-00-568-2318
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| P249A7044REV1 | 00798 | MUTRON CORP |
Technical Data | NSN 5305-00-568-2318
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.406 INCHES MINIMUM |
| FASTENER LENGTH | 1.270 INCHES MINIMUM AND 1.280 INCHES MAXIMUM |
| HEAD STYLE | 9 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.500 INCHES NOMINAL |
| HEAD HEIGHT | 0.189 INCHES MINIMUM AND 0.199 INCHES MAXIMUM |
| POINT STYLE | 8 FLAT |