Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-271-2985 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: 13281229, 13281229, 5305-01-271-2985, 01-271-2985, 5305012712985, 012712985
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 22, 1988 | 01-271-2985 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-271-2985
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 13281229 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
| 13281229 | 5S740 | WORTHEY MACHINE |
Technical Data | NSN 5305-01-271-2985
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 48 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.095 INCHES NOMINAL |
| FASTENER LENGTH | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| HEAD STYLE | 3 CROWNED HEXAGON |
| HEAD DIAMETER | 0.184 INCHES MINIMUM AND 0.185 INCHES MAXIMUM |
| HEAD HEIGHT | 0.060 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.072 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.030 INCHES MINIMUM AND 0.035 INCHES MAXIMUM |
| TEST DATA DOCUMENT | 18876-13281229 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| END ITEM IDENTIFICATION | 1440-01-269-5849 |