Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-01-312-3898 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: 3197865 FIND 5, 3311733, 3197865 FIND 5, 3311733, 5305-01-312-3898, 01-312-3898, 5305013123898, 013123898
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 15, 1989 | 01-312-3898 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK
FLAT
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-312-3898
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 3197865 FIND 5 | 77068 | ALLIED-SIGNAL INCDBA ALLIED-SIGNAL AEROSPACE CO |
| 3311733 | 77068 | ALLIED-SIGNAL INCDBA ALLIED-SIGNAL AEROSPACE CO |
| 3197865 FIND 5 | 59364 | HONEYWELL INTERNATIONAL INC.DBA HONEYWELL |
| 3311733 | 59364 | HONEYWELL INTERNATIONAL INC.DBA HONEYWELL |
Technical Data | NSN 5305-01-312-3898
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.125 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.110 INCHES MINIMUM AND 0.200 INCHES MAXIMUM |
| FASTENER LENGTH | 0.600 INCHES MINIMUM AND 0.630 INCHES MAXIMUM |
| HEAD STYLE | 0 HEXAGON COUNTERSUNK |
| HEAD DIAMETER | 0.160 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 98.0 DEGREES MINIMUM AND 102.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| POINT STYLE | 9 FLAT |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.084 INCHES MINIMUM AND 0.094 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.040 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |