Part Details | SETSCREW
5305-01-250-0521 An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.
Alternate Parts: 28708L4C4, 28708L4C4, 28708L-4C-4, 5305-01-250-0521, 01-250-0521, 5305012500521, 012500521
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | FEB 24, 1987 | 01-250-0521 | 06672 ( SETSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
OVAL
HEXAGON
Cross Reference | NSN 5305-01-250-0521
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 28708L4C4 | 17077 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN SPACE SYSTEMS |
| 28708L-4C-4 | 56878 | SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION |
Technical Data | NSN 5305-01-250-0521
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNRC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| HEAD STYLE | 01 HEXAGON |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.125 INCHES NOMINAL |
| POINT STYLE | 0 OVAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |