Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-186-1206 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: M86K00051, M86K0005-1, M86K00051, M86K0005-1, M86K00051, M86K0005-1, 5305-01-186-1206, 01-186-1206, 5305011861206, 011861206
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | AUG 08, 1984 | 01-186-1206 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
HEXAGON
Cross Reference | NSN 5305-01-186-1206
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| M86K0005-1 | 14248 | HARLOW AEROSTRUCTURES LLC |
| M86K0005-1 | 19133 | MCDONNELL DOUGLAS CORPMCDONNELL DOUGLAS AEROSPACE |
| M86K0005-1 | 12464 | MCDONNELL DOUGLAS CORPMCDONNELL DOUGLAS ELECTRONIC SYSTEMS |
Technical Data | NSN 5305-01-186-1206
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNRF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.420 INCHES NOMINAL |
| FASTENER LENGTH | 1.290 INCHES NOMINAL |
| HEAD STYLE | 9 CROWNED HEXAGON |
| HEAD DIAMETER | 0.303 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| HEAD HEIGHT | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| CHAMFER ANGLE | 45.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.157 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
| FIRST DIAMETER FROM HEAD | 0.150 INCHES NOMINAL |
| SECOND DIAMETER FROM HEAD | 0.190 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.870 INCHES NOMINAL |