Part Details | MACHINE SCREW
5305-00-721-9404 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: HT16412, HT164-12, HT164AR12, HT164AR-12, HT16412, HT164-12, 5305-00-721-9404, 00-721-9404, 5305007219404, 007219404
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-721-9404 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
TORQUE SET
Cross Reference | NSN 5305-00-721-9404
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| HT164-12 | F0895 | CARRIER KHEOPS BAC |
| HT164AR-12 | 73197 | HI-SHEAR CORPORATION |
| HT164-12 | 73197 | HI-SHEAR CORPORATION |
Technical Data | NSN 5305-00-721-9404
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.316 INCHES MINIMUM |
| FASTENER LENGTH | 1.066 INCHES NOMINAL |
| SCREW MATERIAL | STEEL COMP 431 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT | CADMIUM |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE |
| HEAD STYLE | 9 DISHED HEXAGON |
| HEAD DIAMETER | 0.501 INCHES MINIMUM AND 0.506 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | TORQUE SET |