Part Details | TAPPING SCREW
5305-00-637-4521 A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes SCREW, ASSEMBLED WASHER.
Alternate Parts: ANSI B18.6.4, FFS107, FF-S-107, 60054, 5305-00-637-4521, 00-637-4521, 5305006374521, 006374521
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-637-4521 | 41756 ( SCREW, TAPPING ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
NARROW FLUTE (TYPE E)
Cross Reference | NSN 5305-00-637-4521
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| ANSI B18.6.4 | 80204 | AMERICAN NATIONAL STANDARDSINSTITUTE, INCORPORATED |
| FF-S-107 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| 60054 | 2S125 | HILLMAN GROUP INC THE |
Technical Data | NSN 5305-00-637-4521
| Characteristic | Specifications |
|---|---|
| NONMACHINE THREAD STYLE | 3 NARROW FLUTE (TYPE E) |
| NONMACHINE NOMINAL THREAD DIAMETER | 0.151 INCHES |
| FASTENER LENGTH | 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| HEAD STYLE | 3 DISHED HEXAGON |
| HEAD DIAMETER | 0.281 INCHES MINIMUM AND 0.296 INCHES MAXIMUM |
| HEAD HEIGHT | 0.079 INCHES MINIMUM AND 0.089 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | 4 CROSS RECESS TYPE 1 |
| FEATURES PROVIDED | CASEHARDENED |