Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-778-7828 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: 394997, B22940, B2-2940, 5305-00-778-7828, 00-778-7828, 5305007787828, 007787828
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1962 | 00-778-7828 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-778-7828
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 394997 | 31949 | BROOKS AUTOMATION, INC.DIV CTI CRYOGENICS |
| B2-2940 | 31949 | BROOKS AUTOMATION, INC.DIV CTI CRYOGENICS |
Technical Data | NSN 5305-00-778-7828
| Characteristic | Specifications |
|---|---|
| NOMINAL THREAD DIAMETER | 6.0 MILLIMETERS |
| THREAD PITCH IN MILLIMETERS | 25.4 |
| NONSTANDARD THREAD PITCH DIAMETER | +0.2060 TO +0.2160 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| FASTENER LENGTH | 2.082 INCHES MINIMUM AND 2.092 INCHES MAXIMUM |
| HEAD STYLE | 6 UNDERCUT HEXAGON |
| HEAD DIAMETER | 0.393 INCHES MAXIMUM |
| HEAD HEIGHT | 0.205 INCHES MAXIMUM |
| DISTANCE FROM CENTERLINE TO FLAT | 0.149 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.234 INCHES MINIMUM AND 0.238 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.193 INCHES MINIMUM AND 0.201 INCHES MAXIMUM |
| THIRD DIAMETER FROM HEAD | 0.235 INCHES MINIMUM AND 0.236 INCHES MAXIMUM |
| FOURTH DIAMETER FROM HEAD | 0.173 INCHES MINIMUM AND 0.181 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.138 INCHES MINIMUM AND 0.178 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.504 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.543 INCHES MINIMUM AND 0.559 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER | 0.583 INCHES MINIMUM AND 0.599 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |