NSN 5305-00-018-1657
Part Details | HEXAGON HEAD CAP SCREW
5305-00-018-1657 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: 181657, 5305000181657, 5305000181657, FFS85TYPE2STYLE10PGRADE5, 5305-00-018-1657, 00-018-1657, 5305000181657, 000181657
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-018-1657 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5305-00-018-1657
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 181657 | 21450 | ARMY WEAPONS COMMANDATTN AMSWE-REE-S |
| 5305000181657 | A00AM | E.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES |
| 5305000181657 | SCY13 | E.C.A ETABLISSEMENTCENTRALD'APPROVISIONNEMENT DES |
| FFS85TYPE2STYLE10PGRADE5 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
Technical Data | NSN 5305-00-018-1657
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| THREAD LENGTH | 0.688 INCHES MAXIMUM |
| FASTENER LENGTH | 0.656 INCHES MINIMUM AND 0.688 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 85000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY FASTENER LENGTH |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10 STYLE |
