Part Details | HEXAGON HEAD CAP SCREW
5305-00-439-6241 An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes BOLT,MACHINE; BOLT,EXTERNALLY RELIEVED BODY; BOLT,INTERNAL WRENCHING; and SCREW,CAP,SOCKET HEAD.
Alternate Parts: 9416867, 8744246, 5305-00-439-6241, 00-439-6241, 5305004396241, 004396241
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-439-6241 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON EXTENDED WASHER
Cross Reference | NSN 5305-00-439-6241
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 9416867 | 24617 | GENERAL MOTORS CORP |
| 8744246 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
Technical Data | NSN 5305-00-439-6241
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| THREAD LENGTH | 0.359 INCHES MINIMUM AND 0.389 INCHES MAXIMUM |
| FASTENER LENGTH | 0.359 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 18 |
| THREAD CLASS | 2A |
| HEAD HEIGHT | 0.259 INCHES MINIMUM AND 0.274 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.686 INCHES MINIMUM AND 0.706 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.056 INCHES MINIMUM AND 0.071 INCHES MAXIMUM |
| FEATURES PROVIDED | UNFINISHED HEAD |