Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-056-8744 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: 9757051, 975705-1, 9757051, 975705-1, 9757051, 975705-1, 5305-01-056-8744, 01-056-8744, 5305010568744, 010568744
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAR 03, 1978 | 01-056-8744 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE II
Cross Reference | NSN 5305-01-056-8744
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 975705-1 | 54X10 | RAYTHEON COMPANYDBA RAYTHEON |
| 975705-1 | 49956 | RAYTHEON COMPANYDBA RAYTHEON |
| 975705-1 | 3B150 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5305-01-056-8744
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.198 INCHES NOMINAL |
| FASTENER LENGTH | 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| HEAD STYLE | 4 CROWNED HEXAGON |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE II |
| FIRST DIAMETER FROM HEAD | 0.071 INCHES MINIMUM AND 0.074 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.100 INCHES NOMINAL |