NSN 5305-00-020-3623
Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-020-3623 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: 80600026421, 8060002642-1, 5305-00-020-3623, 00-020-3623, 5305000203623, 000203623
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | OCT 17, 1972 | 00-020-3623 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-020-3623
Part Number | Cage Code | Manufacturer |
---|---|---|
8060002642-1 | 57057 | NAVCOM DEFENSE ELECTRONICS, INC. |
Technical Data | NSN 5305-00-020-3623
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNC |
NOMINAL THREAD DIAMETER | 0.138 INCHES |
THREAD QUANTITY PER INCH | 32 |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.361 INCHES MINIMUM |
FASTENER LENGTH | 2.202 INCHES MINIMUM AND 2.232 INCHES MAXIMUM |
HEAD STYLE | 9 CROWNED HEXAGON |
HEAD DIAMETER | 0.220 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
HEAD HEIGHT | 0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
FIRST DIAMETER FROM HEAD | 0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM |
SECOND DIAMETER FROM HEAD | 0.220 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
THIRD DIAMETER FROM HEAD | 0.091 INCHES MINIMUM AND 0.097 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 1.139 INCHES NOMINAL |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.219 INCHES NOMINAL |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.856 INCHES NOMINAL |