NSN 5305-00-143-1331
Part Details | THUMBSCREW
5305-00-143-1331 An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use SCREW (as modified) or BOLT (as modified).
Alternate Parts: 206591, 20659-1, 5305-00-143-1331, 00-143-1331, 5305001431331, 001431331
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | JUL 17, 1968 | 00-143-1331 | 06673 ( THUMBSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON EXTENDED WASHER

FLAT

Cross Reference | NSN 5305-00-143-1331
Part Number | Cage Code | Manufacturer |
---|---|---|
20659-1 | 14802 | MANDZAK INSTRUMENTATIONSPECIALISTS INC |
Technical Data | NSN 5305-00-143-1331
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 | 0.170 INCHES MINIMUM |
FASTENER LENGTH | 0.590 INCHES NOMINAL |
HEAD STYLE | 9 HEXAGON EXTENDED WASHER |
HEAD HEIGHT | 0.360 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.320 INCHES MINIMUM AND 0.430 INCHES MAXIMUM |
POINT STYLE | 9 FLAT |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FIRST DIAMETER FROM HEAD | 0.120 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.420 INCHES NOMINAL |