NSN 5305-00-187-9941
Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-187-9941 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: 100008, 5305-00-187-9941, 00-187-9941, 5305001879941, 001879941
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | MAR 11, 1973 | 00-187-9941 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-187-9941
Part Number | Cage Code | Manufacturer |
---|---|---|
100008 | 19565 | SYMBOLIC DISPLAYS, INC. |
Technical Data | NSN 5305-00-187-9941
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.060 INCHES |
THREAD QUANTITY PER INCH | 80 |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
FASTENER LENGTH | 0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM |
HEAD STYLE | 9 CROWNED HEXAGON |
HEAD DIAMETER | 0.084 INCHES MINIMUM AND 0.094 INCHES MAXIMUM |
HEAD HEIGHT | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FIRST DIAMETER FROM HEAD | 0.041 INCHES MINIMUM AND 0.046 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.315 INCHES MINIMUM AND 0.335 INCHES MAXIMUM |