Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-215-0492 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: 12321043, 12321043, 5305-01-215-0492, 01-215-0492, 5305012150492, 012150492
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | AUG 21, 1985 | 01-215-0492 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE HEXAGON EXTENDED WASHER
FLAT
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-215-0492
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 12321043 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
| 12321043 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 5305-01-215-0492
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNEF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.481 INCHES NOMINAL |
| FASTENER LENGTH | 0.560 INCHES NOMINAL |
| HEAD STYLE | 2 DOUBLE HEXAGON EXTENDED WASHER |
| HEAD DIAMETER | 0.249 INCHES NOMINAL |
| HEAD HEIGHT | 0.060 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.370 INCHES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.060 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| POINT STYLE | FLAT |
| POINT LENGTH | 0.125 INCHES NOMINAL |
| POINT DIAMETER | 0.124 INCHES NOMINAL |
| POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
| FIRST DIAMETER FROM HEAD | 0.250 INCHES NOMINAL |
| SECOND DIAMETER FROM HEAD | 0.312 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.080 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.487 INCHES NOMINAL |
| SPECIAL FEATURES | MINIMUM BREAKAWAY TORQUE 6.5 IN. LBS.,MAX TORQUE 60 IN. LBS. |