NSN 5305-00-144-0420
Part Details | MACHINE SCREW
5305-00-144-0420 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: FFS92, MS35191349, MS35191-349, MS35191349, MS35191-349, 5305-00-144-0420, 00-144-0420, 5305001440420, 001440420
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | NOV 01, 1968 | 00-144-0420 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-144-0420
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| FFS92 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| MS35191-349 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
| MS35191-349 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
Technical Data | NSN 5305-00-144-0420
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.750 INCHES MINIMUM |
| FASTENER LENGTH | 2.156 INCHES MINIMUM AND 2.250 INCHES MAXIMUM |
| SCREW MATERIAL | 0$1$3 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD ALL MATERIAL RESPONSES |
| SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-B-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES |
| HEAD STYLE | 9 DISHED HEXAGON |
| HEAD DIAMETER | 0.775 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 2C STYLE |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY MATERIAL |