NSN 5305-00-021-3213
Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-021-3213 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: 6187841, 618784-1, 5305-00-021-3213, 00-021-3213, 5305000213213, 000213213
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | MAY 17, 1968 | 00-021-3213 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-00-021-3213
Part Number | Cage Code | Manufacturer |
---|---|---|
618784-1 | 96214 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5305-00-021-3213
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNC |
NOMINAL THREAD DIAMETER | 0.112 INCHES |
THREAD QUANTITY PER INCH | 40 |
THREAD CLASS | 2A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
FASTENER LENGTH | 0.810 INCHES MINIMUM AND 0.830 INCHES MAXIMUM |
HEAD STYLE | 3 DISHED HEXAGON |
HEAD DIAMETER | 0.202 INCHES MINIMUM AND 0.222 INCHES MAXIMUM |
HEAD HEIGHT | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FIRST DIAMETER FROM HEAD | 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.640 INCHES MINIMUM AND 0.680 INCHES MAXIMUM |
SPECIAL FEATURES | PAINTED AREA GRAY COLOR NO. 36231 FED STD 595 |