NSN 5306-00-256-3685
Part Details | EXTERNALLY RELIEVED BODY BOLT
5306-00-256-3685 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 undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.
Alternate Parts: 6149SS25207, 6149-SS-2520-7, 213SS20, 213-SS-20, 6149SS2520, 6149SS25207, 6149-SS-2520-7, GS553L4CC16B, 4149M07F09, 4149-M07-F09, 5306-00-256-3685, 00-256-3685, 5306002563685, 002563685
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAR 24, 1971 | 00-256-3685 | 06675 ( BOLT, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK UNDERCUT
Cross Reference | NSN 5306-00-256-3685
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6149-SS-2520-7 | 1YGB8 | CAREY MANUFACTURING COMPANY, INC.DBA AMATOM ELECTRONIC HARDWARE |
| 213-SS-20 | 55566 | MATTHEW WARREN, INCDBA RAF ELECTRONIC HARDWARE |
| 6149SS2520 | 06540 | NEW HAVEN MFG CORPAMATOM ELECTRONIC HARDWARE DIV |
| 6149-SS-2520-7 | 06540 | NEW HAVEN MFG CORPAMATOM ELECTRONIC HARDWARE DIV |
| GS553L4CC16B | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS |
| 4149-M07-F09 | 04729 | UNICORP |
Technical Data | NSN 5306-00-256-3685
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.375 INCHES MINIMUM |
| FASTENER LENGTH | 1.000 INCHES NOMINAL |
| HEAD STYLE | 6 HEXAGON COUNTERSUNK UNDERCUT |
| HEAD DIAMETER | 0.562 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.175 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.625 INCHES NOMINAL |
