Part Details | MACHINE SCREW
5305-01-255-9438 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: 0646C62424, 0646C624-24, 0646C62424, 0646C624-24, 0646C62424, 0646C624-24, 5305-01-255-9438, 01-255-9438, 5305012559438, 012559438
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 30, 1987 | 01-255-9438 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
Cross Reference | NSN 5305-01-255-9438
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 0646C624-24 | 99167 | HAMILTON SUNDSTRAND CORPORATION |
| 0646C624-24 | 82896 | SAFETY SOCKET LLC |
| 0646C624-24 | 56878 | SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION |
Technical Data | NSN 5305-01-255-9438
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.979 INCHES MINIMUM AND 1.062 INCHES MAXIMUM |
| FASTENER LENGTH | 1.469 INCHES MINIMUM AND 1.485 INCHES MAXIMUM |
| SCREW MATERIAL | STEEL COMP 4037 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AISI 4037 ASSN STD SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT | CADMIUM |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 1 CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MINIMUM |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 9 DISHED HEXAGON |
| HEAD DIAMETER | 0.720 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 78.0 DEGREES MINIMUM AND 80.0 DEGREES MAXIMUM |