Part Details | THUMBSCREW
5305-00-422-2853 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: 306156, 306156, 306156, 5305-00-422-2853, 00-422-2853, 5305004222853, 004222853
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUL 24, 1970 | 00-422-2853 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
FLAT
Cross Reference | NSN 5305-00-422-2853
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 306156 | 64959 | AMERICAN TELEPHONE AND TELEGRAPH CO |
| 306156 | 57712 | TELEMECHANICS INC |
| 306156 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
Technical Data | NSN 5305-00-422-2853
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | LEFT-HAND |
| THREAD LENGTH | 0.312 INCHES NOMINAL |
| FASTENER LENGTH | 0.375 INCHES NOMINAL |
| HEAD STYLE | 6 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.484 INCHES NOMINAL |
| HEAD HEIGHT | 0.070 INCHES NOMINAL |
| POINT STYLE | 9 FLAT |
| SPECIAL FEATURES | DRILLED AND THREADED HOLE IN HEADEND,0.138-40UNF X 0.188 INCH DEEP |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |