Part Details | THUMBSCREW
5305-01-340-3457 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: 63618557, 636185-57, 5305-01-340-3457, 01-340-3457, 5305013403457, 013403457
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUN 11, 1991 | 01-340-3457 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
FLAT
Cross Reference | NSN 5305-01-340-3457
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 636185-57 | 96421 | DEPARTMENT OF THE NAVY COMMANDINGOFFICER NAVAL AVIATION DEPOT |
Technical Data | NSN 5305-01-340-3457
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.500 INCHES NOMINAL |
| FASTENER LENGTH | 2.900 INCHES NOMINAL |
| HEAD STYLE | 7 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 2.000 INCHES NOMINAL |
| HEAD HEIGHT | 1.250 INCHES NOMINAL |
| POINT STYLE | 9 FLAT |
| END ITEM IDENTIFICATION | AH-1T/W ACFT |
| FSC APPLICATION DATA | BORESIGHT EQUIP |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |