Part Details | MACHINE SCREW
5305-01-341-8394 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
Alternate Parts: B18.6440UNC2AX38LGST12.9, B18.6-4-40UNC-2AX3/8LG-ST12.9, 93085A108, 67160542, 6716054-2, 5305-01-341-8394, 01-341-8394, 5305013418394, 013418394
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUL 09, 1991 | 01-341-8394 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE III
Cross Reference | NSN 5305-01-341-8394
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B18.6-4-40UNC-2AX3/8LG-ST12.9 | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
| 93085A108 | 39428 | MCMASTER-CARR SUPPLY COMPANY |
| 6716054-2 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 5305-01-341-8394
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.326 INCHES NOMINAL |
| FASTENER LENGTH | 0.375 INCHES NOMINAL |
| SCREW MATERIAL | STEEL COMP 302 |
| HEAD STYLE | 9 DISHED HEXAGON |
| HEAD DIAMETER | 0.220 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.062 INCHES NOMINAL |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE III |