Part Details | PANEL SCREW ASSEMBLY
5305-01-221-3503 A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.
Alternate Parts: B40133882, B4013388-2, FT11952, FT1195-2, HLC790012CF5, HLC7900-12C-F-5, HLC790012CF5, HLC7900-12C-F-5, T320014902, 5305-01-221-3503, 01-221-3503, 5305012213503, 012213503
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | NOV 28, 1985 | 01-221-3503 | 33044 ( SCREW ASSEMBLY, PANEL ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-221-3503
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B4013388-2 | 56996 | DEPARTMENT OF THE ARMY HQUNITED STATES ARMY COMMUNICATIONS |
| FT1195-2 | 58794 | FASTENER TECHNOLOGY CORP. |
| HLC7900-12C-F-5 | 0HDW7 | HUCK INTERNATIONAL, INC.DBA ARCONIC FASTENING SYSTEMS AND |
| HLC7900-12C-F-5 | 97928 | HUCK INTL INC |
| T320014902 | 36090 | LOCKHEED MARTIN LIBRASCOPECORP |
Technical Data | NSN 5305-01-221-3503
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.250 INCHES NOMINAL |
| FASTENER LENGTH | 0.852 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| MATERIAL ACCOMMODATED THICKNESS | 0.318 INCHES MINIMUM AND 0.332 INCHES MAXIMUM |