NSN 5305-00-178-8638
Part Details | PANEL SCREW ASSEMBLY
5305-00-178-8638 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: 511860724, 51-18-607-24, 5305-00-178-8638, 00-178-8638, 5305001788638, 001788638
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | FEB 18, 1973 | 00-178-8638 | 33044 ( SCREW ASSEMBLY, PANEL ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-178-8638
Part Number | Cage Code | Manufacturer |
---|---|---|
51-18-607-24 | 94222 | SOUTHCO, INC. |
Technical Data | NSN 5305-00-178-8638
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNC |
NOMINAL THREAD DIAMETER | 0.138 INCHES |
THREAD QUANTITY PER INCH | 32 |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.281 INCHES NOMINAL |
FASTENER LENGTH | 0.719 INCHES NOMINAL |
HEAD STYLE | 9 CROWNED HEXAGON |
HEAD DIAMETER | 0.312 INCHES NOMINAL |
HEAD HEIGHT | 0.188 INCHES NOMINAL |
INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
MATERIAL ACCOMMODATED THICKNESS | 0.115 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
SPECIAL FEATURES | HEAD VERTICALLY KNURLED |