Part Details | HEXAGON HEAD CAP SCREW
5305-01-274-7958 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: 6502476, MILS1222, MIL-S-1222, MILDTL1222, MIL-DTL-1222, 2076015504 ITEM 25, 207-6015504 ITEM 25, 5305-01-274-7958, 01-274-7958, 5305012747958, 012747958
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAR 13, 1988 | 01-274-7958 | 18257 ( SCREW, CAP, HEXAGON HEAD ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5305-01-274-7958
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6502476 | 43689 | HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS |
| MIL-S-1222 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 207-6015504 ITEM 25 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 5305-01-274-7958
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| THREAD LENGTH | 1.500 INCHES MINIMUM |
| FASTENER LENGTH | 2.420 INCHES MINIMUM AND 2.560 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 11 |
| THREAD CLASS | 2A |
| MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 105000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.906 INCHES MINIMUM AND 0.928 INCHES MAXIMUM |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND B7 GRADE |
