NSN 5305-00-139-6839
Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-139-6839 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: 2500139000, 250-0139-000, 5305-00-139-6839, 00-139-6839, 5305001396839, 001396839
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | SEP 01, 1971 | 00-139-6839 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE 1
ROUND
Cross Reference | NSN 5305-00-139-6839
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 250-0139-000 | 71468 | ITT CORPORATIONDBA I T T CANNON |
Technical Data | NSN 5305-00-139-6839
| 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 | 0.173 INCHES MINIMUM AND 0.197 INCHES MAXIMUM |
| FASTENER LENGTH | 0.640 INCHES MINIMUM AND 0.650 INCHES MAXIMUM |
| HEAD STYLE | 4 CROWNED HEXAGON |
| HEAD DIAMETER | 0.212 INCHES MINIMUM AND 0.222 INCHES MAXIMUM |
| HEAD HEIGHT | 0.088 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| HOLE CONFIGURATION STYLE | ROUND |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 1 |
| HOLE DIAMETER | 0.046 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.130 INCHES MINIMUM AND 0.136 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.091 INCHES MINIMUM AND 0.097 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.021 INCHES MINIMUM AND 0.029 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.453 INCHES MINIMUM AND 0.467 INCHES MAXIMUM |
| SPECIAL FEATURES | POINTED END 118.0 DEGREE MIN,122.0 DEGREE MAX |