NSN 5306-00-078-3438
Part Details | EXTERNALLY RELIEVED BODY BOLT
5306-00-078-3438 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: 32944867, 32-94486-7, 5306-00-078-3438, 00-078-3438, 5306000783438, 000783438
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | AUG 11, 1967 | 00-078-3438 | 06675 ( BOLT, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON

Cross Reference | NSN 5306-00-078-3438
Part Number | Cage Code | Manufacturer |
---|---|---|
32-94486-7 | 76301 | BOEING COMPANY, THEDBA BOEING |
Technical Data | NSN 5306-00-078-3438
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.375 INCHES |
THREAD QUANTITY PER INCH | 24 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 1.054 INCHES MINIMUM |
FASTENER LENGTH | 1.150 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.180 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FIRST DIAMETER FROM HEAD | 0.298 INCHES MINIMUM AND 0.308 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.096 INCHES MINIMUM AND 0.111 INCHES MAXIMUM |