Part Details | ASSEMBLED WASHER SCREW
5305-01-121-2689 A SCREW, (as modified) to which has been assembled one or more nonremovable washer(s).
Alternate Parts: NAS720B84, NAS720B8-4, 5305-01-121-2689, 01-121-2689, 5305011212689, 011212689
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | NOV 04, 1981 | 01-121-2689 | 06660 ( SCREW, ASSEMBLED WASHER ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
OFFSET CRUCIFORM (TORQUE SET)
COUNTERSINK EXTERNAL TEETH
SPLIT HELICAL RING
COUNTERSINK EXTERNAL TEETH
SPLIT HELICAL RING
Cross Reference | NSN 5305-01-121-2689
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| NAS720B8-4 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
Technical Data | NSN 5305-01-121-2689
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.202 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| FASTENER LENGTH | 0.218 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| HEAD STYLE | 3 DISHED HEXAGON |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| WASHER QUANTITY | 2 |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.293 INCHES MAXIMUM |
| PRIMARY WASHER MATERIAL THICKNESS | 0.040 INCHES MINIMUM |
| SECONDARY WASHER RELATIONSHIP TO PRIMARY WASHER | NOT IDENTICAL |
| SECONDARY WASHER STYLE | 0 COUNTERSINK EXTERNAL TEETH |
| SECONDARY WASHER OUTSIDE DIAMETER | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| SECONDARY WASHER MATERIAL THICKNESS | 0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS720 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |