NSN 5305-00-405-6956 256UNC3AX38, 2-56UNC3AX3-8, 256UNC3AX38STLCADPL
Product Details | SOCKET HEAD CAP SCREW
5305-00-405-6956 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
Part Alternates: 256UNC3AX38, 2-56UNC3AX3-8, 256UNC3AX38STLCADPL, 2-56UNC3AX3-8STLCADPL, 6553829004, 655-382-9004, 5305-00-405-6956, 00-405-6956, 5305004056956, 004056956
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 27 APR 1974 | 00-405-6956 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
Drawings & Photos | NSN 5305-00-405-6956
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Technical Data | NSN 5305-00-405-6956
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.086 INCHES |
| THREAD QUANTITY PER INCH | 56 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.375 INCHES NOMINAL |
| FASTENER LENGTH | 0.375 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD STYLE | B30 BUTTON |
| HEAD DIAMETER | 0.154 INCHES MINIMUM AND 0.164 INCHES MAXIMUM |
| HEAD HEIGHT | 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | D7 SIX SPLINE |
| SPLINE MAJOR DIAMETER | 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM |
| MANUFACTURERS CODE | 70210 |
| DESIGN CONTROL REFERENCE | 655-382-9004 |
Restrictions/Controls & Freight Information | NSN 5305-00-405-6956
| 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 | ||