Part Details | THUMBSCREW
5305-00-721-3411 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: 9053574, 5305-00-721-3411, 00-721-3411, 5305007213411, 007213411
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1961 | 00-721-3411 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
FLAT
Cross Reference | NSN 5305-00-721-3411
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 9053574 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 5305-00-721-3411
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.375 INCHES MINIMUM |
| FASTENER LENGTH | 1.375 INCHES NOMINAL |
| HEAD STYLE | 6 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.500 INCHES NOMINAL |
| HEAD HEIGHT | 0.219 INCHES NOMINAL |
| POINT STYLE | 1 FLAT |
| POINT LENGTH | 0.625 INCHES NOMINAL |
| POINT DIAMETER | 0.178 INCHES MINIMUM AND 0.183 INCHES MAXIMUM |
| SPECIAL FEATURES | UNDERCUT UNTHREADED PORTION ON 0.195 IN.TO 0.200 IN.DIA 0.375 IN.LG AND STRAIGHT KNURLED,19 TEETH PER IN. |