NSN 5305-00-142-4186
Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-142-4186 An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.
Alternate Parts: 6063431, 606343-1, 6063431, 606343-1, 5305-00-142-4186, 00-142-4186, 5305001424186, 001424186
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUN 17, 1968 | 00-142-4186 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
CROSS RECESS TYPE II
Cross Reference | NSN 5305-00-142-4186
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 606343-1 | 13861 | BISCO INDUSTRIES INCDBA NATIONAL PRECISION PRODUCTS |
| 606343-1 | 96214 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5305-00-142-4186
| 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 | 0.530 INCHES MINIMUM AND 0.570 INCHES MAXIMUM |
| FASTENER LENGTH | 1.730 INCHES MINIMUM AND 1.770 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 1 CROSS RECESS TYPE II |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.177 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.160 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.160 INCHES MINIMUM AND 1.240 INCHES MAXIMUM |