NSN 5305-00-021-3221
Part Details | EXTERNALLY RELIEVED BODY SCREW
5305-00-021-3221 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: 6187843, 618784-3, 5305-00-021-3221, 00-021-3221, 5305000213221, 000213221
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAY 24, 1968 | 00-021-3221 | 01852 ( SCREW, EXTERNALLY RELIEVED BODY ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-021-3221
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 618784-3 | 96214 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5305-00-021-3221
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM |
| FASTENER LENGTH | 1.020 INCHES MINIMUM AND 1.040 INCHES MAXIMUM |
| HEAD STYLE | 3 DISHED HEXAGON |
| HEAD DIAMETER | 0.360 INCHES MINIMUM AND 0.380 INCHES MAXIMUM |
| HEAD HEIGHT | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
| FIRST DIAMETER FROM HEAD | 0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.810 INCHES MINIMUM AND 0.850 INCHES MAXIMUM |
| SPECIAL FEATURES | PAINTED AREA GRAY ENAMEL F-86 TYPE 2 CLASS 3 GRADE 2 96214 |
