Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-266-8304 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: 5002525, 5305-01-266-8304, 01-266-8304, 5305012668304, 012668304
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | OCT 31, 1987 | 01-266-8304 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE HEXAGON EXTENDED WASHER
FLAT
CROSS RECESS TYPE II
DOUBLE HEXAGON FLATS
Cross Reference | NSN 5305-01-266-8304
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 5002525 | 54490 | DEPT OF THE ARMYU S ARMY ELECTRONICS COMMAND |
Technical Data | NSN 5305-01-266-8304
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNS |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | LEFT-HAND |
| THREAD LENGTH | 1.535 INCHES MINIMUM AND 1.565 INCHES MAXIMUM |
| FASTENER LENGTH | 2.105 INCHES NOMINAL |
| HEAD STYLE | 2 DOUBLE HEXAGON EXTENDED WASHER |
| HEAD DIAMETER | 0.140 INCHES MINIMUM AND 0.144 INCHES MAXIMUM |
| HEAD HEIGHT | 0.275 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.450 INCHES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.040 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | 1 CROSS RECESS TYPE II |
| HOLE CONFIGURATION STYLE | 2 DOUBLE HEXAGON FLATS |
| HOLE TYPE | THREADED |
| HOLE QUANTITY | 1 |
| HOLE NOMINAL THREAD DIAMETER | 0.060 INCHES |
| HOLE THREAD QUANTITY PER INCH | 80 |
| POINT STYLE | 9 FLAT |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.125 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 | 0.205 INCHES NOMINAL |
| SPECIAL FEATURES | SPECIAL FOUR POINTED END |