Part Details | MACHINE SCREW
5305-00-637-6557 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.
Alternate Parts: 81902891, 81-90289-1, 81902891, 81-90289-1, 8190289, 81-90289, 17911004P1, 1791-1004P1, 5305-00-637-6557, 00-637-6557, 5305006376557, 006376557
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-637-6557 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-637-6557
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 81-90289-1 | 04655 | GENERAL DYNAMICS MISSION SYSTEMS,INC. |
| 81-90289-1 | 94923 | GTE PRODUCTS CORPENTERTAINMENT PRODUCTS GROUP |
| 81-90289 | 94923 | GTE PRODUCTS CORPENTERTAINMENT PRODUCTS GROUP |
| 1791-1004P1 | 49956 | RAYTHEON COMPANYDBA RAYTHEON |
Technical Data | NSN 5305-00-637-6557
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.060 INCHES |
| THREAD QUANTITY PER INCH | 80 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.125 INCHES MINIMUM |
| FASTENER LENGTH | 0.173 INCHES NOMINAL |
| SCREW MATERIAL | STEEL |
| HEAD STYLE | 6 DISHED HEXAGON |
| HEAD DIAMETER | 0.171 INCHES NOMINAL |
| HEAD HEIGHT | 0.048 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |