NSN 5305-00-249-0591
Part Details | SETSCREW
5305-00-249-0591 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: FFS21, FF-S-21, MILB933TYPEA, MIL-B-933TYPEA, 5305-00-249-0591, 00-249-0591, 5305002490591, 002490591
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-249-0591 | 06672 ( SETSCREW ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
OVAL
CROSS RECESS TYPE II
Cross Reference | NSN 5305-00-249-0591
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| FF-S-21 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| MIL-B-933TYPEA | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
Technical Data | NSN 5305-00-249-0591
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| HEAD STYLE | 3 HEXAGON |
| HEAD HEIGHT | 0.178 INCHES MINIMUM AND 0.196 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.241 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 1 CROSS RECESS TYPE II |
| POINT STYLE | 0 OVAL |
| NONDEFINITIVE SPEC/STD DATA | A TYPE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SETSCREW |