Part Details | MACHINE SCREW
5305-01-259-2899 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: 61060, 169908F320, 16990-8F-320, 9387807, 5305-01-259-2899, 01-259-2899, 5305012592899, 012592899
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JUL 15, 1987 | 01-259-2899 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
Cross Reference | NSN 5305-01-259-2899
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 61060 | 74445 | H-K CONNECTICUT HOLDING COMPANY |
| 16990-8F-320 | 50392 | SPS TECHNOLOGIES INC |
| 9387807 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 5305-01-259-2899
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNRF |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.500 INCHES NOMINAL |
| FASTENER LENGTH | 1.749 INCHES NOMINAL |
| SCREW MATERIAL | STEEL |
| HEAD STYLE | 0 CROWNED HEXAGON |
| HEAD DIAMETER | 0.860 INCHES MINIMUM AND 0.940 INCHES MAXIMUM |
| HEAD HEIGHT | 0.251 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL |
| COUNTERSINK ANGLE | 82.0 DEGREES NOMINAL |
| END ITEM IDENTIFICATION | 6920-01-185-9279 |