Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-253-1819 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: 401SS0, 401-SS-0, 5305-01-253-1819, 01-253-1819, 5305012531819, 012531819
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | APR 14, 1987 | 01-253-1819 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
CONE
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-253-1819
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 401-SS-0 | 55566 | MATTHEW WARREN, INCDBA RAF ELECTRONIC HARDWARE |
Technical Data | NSN 5305-01-253-1819
| 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 | 0.204 INCHES MINIMUM AND 0.219 INCHES MAXIMUM |
| FASTENER LENGTH | 1.173 INCHES MINIMUM AND 1.203 INCHES MAXIMUM |
| HEAD STYLE | 9 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.312 INCHES MINIMUM AND 0.327 INCHES MAXIMUM |
| HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| POINT STYLE | CONE |
| POINT LENGTH | 0.079 INCHES MINIMUM AND 0.109 INCHES MAXIMUM |
| POINT DIAMETER | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM |
| POINT CHAMFER ANGLE | 85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 |
| PROPRIETARY CHARACTERISTICS | NPAC |