Part Details | HEXAGON HEAD CAP SCREW
5305-01-081-0129 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: NAS102044, NAS1020-44, 5305-01-081-0129, 01-081-0129, 5305010810129, 010810129
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | AUG 07, 1979 | 01-081-0129 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5305-01-081-0129
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| NAS1020-44 | 80205 | NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES |
Technical Data | NSN 5305-01-081-0129
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD LENGTH | 1.816 INCHES MINIMUM AND 1.876 INCHES MAXIMUM |
| FASTENER LENGTH | 4.581 INCHES MINIMUM AND 4.611 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 1.250 INCHES |
| THREAD QUANTITY PER INCH | 12 |
| THREAD CLASS | 3A |
| HEAD HEIGHT | 0.656 INCHES MINIMUM AND 0.672 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 1.801 INCHES MINIMUM AND 1.815 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1020 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |