Part Details | MACHINE SCREW
5305-01-439-2873 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: B1867BA040200, 5305-01-439-2873, 01-439-2873, 5305014392873, 014392873
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 04, 1996 | 01-439-2873 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-439-2873
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B1867BA040200 | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
Technical Data | NSN 5305-01-439-2873
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | M |
| NOMINAL THREAD DIAMETER | 4.0 MILLIMETERS |
| THREAD PITCH IN MILLIMETERS | 0.7 |
| EXTERNAL THREAD TOLERANCE CLASS | 6G |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 18.6 MILLIMETERS MAXIMUM |
| FASTENER LENGTH | 20.0 MILLIMETERS NOMINAL |
| SCREW MATERIAL | STEEL PROPERTY CLASS 9.8 |
| SCREW SURFACE TREATMENT | ZINC |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTMB633,FE/ZN5,TY2 ASSN STD SINGLE TREATMENT RESPONSE |
| HEAD STYLE | 9 DISHED HEXAGON |
| HEAD DIAMETER | 8.0 MILLIMETERS MINIMUM AND 9.4 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 2.7 MILLIMETERS MAXIMUM |
| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |