Part Details | MACHINE SCREW
5305-00-421-3521 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: CAV71812F, CAV71-8-12F, CAV71812F, CAV71-8-12F, 5305-00-421-3521, 00-421-3521, 5305004213521, 004213521
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 07, 1970 | 00-421-3521 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-421-3521
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| CAV71-8-12F | 80294 | BOURNS INSTRUMENTS INC |
| CAV71-8-12F | 11871 | RECON/OPTICAL, INC. |
Technical Data | NSN 5305-00-421-3521
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.750 INCHES MAXIMUM |
| FASTENER LENGTH | 0.750 INCHES MAXIMUM |
| SCREW MATERIAL | STEEL COMP 1010 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT | CADMIUM |
| HEAD STYLE | 3 DISHED HEXAGON |
| HEAD DIAMETER | 0.260 INCHES NOMINAL |
| HEAD HEIGHT | 0.107 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |