NSN 5305-00-018-1659
Part Details | HEXAGON HEAD CAP SCREW
5305-00-018-1659 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: FFS85, FF-S-85, 181659, 181659, MS3529883, MS35298-83, 60X3253, 262209, 214768, 181659, 181135, 5305-00-018-1659, 00-018-1659, 5305000181659, 000181659
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | JAN 01, 1963 | 00-018-1659 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON

Cross Reference | NSN 5305-00-018-1659
Part Number | Cage Code | Manufacturer |
---|---|---|
FF-S-85 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
181659 | 24617 | GENERAL MOTORS CORP |
181659 | 7X677 | GENERAL MOTORS LLCDBA GENERAL MOTORS |
MS35298-83 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
60X3253 | 95201 | NAPCO INTERNATIONAL LLC |
262209 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
214768 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
181659 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
181135 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
Technical Data | NSN 5305-00-018-1659
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNF |
THREAD LENGTH | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
FASTENER LENGTH | 0.719 INCHES MINIMUM AND 0.750 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 | 90000 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 |
SPECIFICATION/STANDARD DATA | 81348-FF--85 GOVERNMENT SPECIFICATION AND 96906-MS35298 TO CANCELED TO GOVERNMENT STANDARD |
NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10P STYLE AND 5 GRADE AND 7 TO 16UNF SIZE |