Part Details | MACHINE SCREW
5305-00-918-4943 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: 51B2228, 51B222-8, 51B2228, 51B222-8, 51B2228, 51B222-8, 51B2228, 51B222-8, 51B2228, 51B222-8, 51B2228, 51B222-8, 51B2228, 51B222-8, 51B2228, 51B222-8, 51B2228, 51B222-8, 5305-00-918-4943, 00-918-4943, 5305009184943, 009184943
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | AUG 05, 1966 | 00-918-4943 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
TORQUE SET
Cross Reference | NSN 5305-00-918-4943
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 51B222-8 | 06950 | ARCONIC GLOBAL FASTENERS & RINGS,INC. |
| 51B222-8 | 73197 | HI-SHEAR CORPORATION |
| 51B222-8 | 17446 | HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND |
| 51B222-8 | L4528 | LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC |
| 51B222-8 | 76823 | NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NORTHROP GRUMMAN AEROSPACE |
| 51B222-8 | 0JRC1 | NORTHROP GRUMMAN TECHNICAL SERVICES,INC. |
| 51B222-8 | 80539 | SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP |
| 51B222-8 | 06725 | SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES |
| 51B222-8 | 27624 | SPS TECHNOLOGIES, LLCDBA PB FASTENERS |
Technical Data | NSN 5305-00-918-4943
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.316 INCHES MINIMUM |
| FASTENER LENGTH | 0.816 INCHES NOMINAL |
| SCREW MATERIAL | STEEL |
| SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 1 UNDERCUT HEXAGON |
| HEAD DIAMETER | 0.488 INCHES NOMINAL |
| HEAD HEIGHT | 0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | TORQUE SET |