NSN 5305-00-042-0989
Part Details | ASSEMBLED WASHER SCREW
5305-00-042-0989 A SCREW, (as modified) to which has been assembled one or more nonremovable washer(s).
Alternate Parts: 420989, 5305-00-042-0989, 00-042-0989, 5305000420989, 000420989
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-042-0989 | 06660 ( SCREW, ASSEMBLED WASHER ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
FLAT EXTERNAL TEETH
FLAT EXTERNAL TEETH
Cross Reference | NSN 5305-00-042-0989
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 420989 | 21450 | ARMY WEAPONS COMMANDATTN AMSWE-REE-S |
Technical Data | NSN 5305-00-042-0989
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.244 INCHES MINIMUM AND 0.344 INCHES MAXIMUM |
| FASTENER LENGTH | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD STYLE | 7 DISHED HEXAGON |
| HEAD DIAMETER | 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM |
| HEAD HEIGHT | 0.160 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| WASHER QUANTITY | 1 |
| PRIMARY WASHER STYLE | FLAT EXTERNAL TEETH |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.460 INCHES MINIMUM AND 0.475 INCHES MAXIMUM |
| PRIMARY WASHER MATERIAL THICKNESS | 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
