Part Details | SOCKET HEAD CAP SCREW
5305-01-286-7987 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
Alternate Parts: 1428UNF 3A X 34 IN.LG., 1/4-28UNF 3A X 3/4 IN.LG., 012867987, MILS1222, MIL-S-1222, MILDTL1222, MIL-DTL-1222, 5305-01-286-7987, 01-286-7987, 5305012867987, 012867987
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | OCT 08, 1988 | 01-286-7987 | 16282 ( SCREW, CAP, SOCKET HEAD ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
HEXAGON
Cross Reference | NSN 5305-01-286-7987
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1/4-28UNF 3A X 3/4 IN.LG. | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
| 012867987 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MIL-S-1222 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 5305-01-286-7987
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.649 INCHES MINIMUM |
| FASTENER LENGTH | 0.720 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| HEAD STYLE | 9 CROWNED HEXAGON |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE |