Part Details | SOCKET HEAD CAP SCREW
5305-01-338-4008 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.
Alternate Parts: MILS1222TYII 1420UNRC3AX12LG, MILS1222TYII 1/4-20UNRC-3AX1/2LG, 8016408780 FIND 21, 801-6408780 FIND 21, 801640534222, 801-6405342-22, 8016405342 FIND 22, 801-6405342 FIND 22, 5566405334 ITE, 556-6405334 ITE, 211035937, 556640533459, 556-6405334-59, 5305-01-338-4008, 01-338-4008, 5305013384008, 013384008
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 03, 1991 | 01-338-4008 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
HEXAGON
Cross Reference | NSN 5305-01-338-4008
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MILS1222TYII 1/4-20UNRC-3AX1/2LG | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 801-6408780 FIND 21 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 801-6405342-22 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 801-6405342 FIND 22 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 556-6405334 ITE | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 211035937 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 556-6405334-59 | D9182 | ZF INDUSTRIEANTRIEBE WITTEN GMBH |
Technical Data | NSN 5305-01-338-4008
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.400 INCHES NOMINAL |
| FASTENER LENGTH | 0.500 INCHES NOMINAL |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 155000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 9 CROWNED HEXAGON |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |