NSN 5305-00-580-4771 21427671, 2142767-1, 00-580-4771
Product Details | THUMBSCREW
5305-00-580-4771 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).
Part Alternates: 21427671, 2142767-1, 5305-00-580-4771, 00-580-4771, 5305005804771, 005804771
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 19 DEC 1974 | 00-580-4771 | 06673 ( THUMBSCREW ) |
Drawings & Photos | NSN 5305-00-580-4771
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Technical Data | NSN 5305-00-580-4771
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNEF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.786 INCHES NOMINAL |
| FASTENER LENGTH | 2.160 INCHES NOMINAL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| HEAD STYLE | C69 KNURLED NO. 4 |
| HEAD DIAMETER | 1.250 INCHES NOMINAL |
| HEAD HEIGHT | 0.440 INCHES NOMINAL |
| POINT STYLE | F2 OVAL |
| POINT LENGTH | 0.312 INCHES NOMINAL |
Restrictions/Controls & Freight Information | NSN 5305-00-580-4771
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||