Part Details | MACHINE SCREW
5305-00-854-9993 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: S14X2058IN, S1-4X20-5-8IN, S1420X58, S1-4-20X5-8, HT14S20S10, HT14S205S10, HT14S20S10, HT14S205S10, 10975128, 5305-00-854-9993, 00-854-9993, 5305008549993, 008549993
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1962 | 00-854-9993 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-854-9993
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| S1-4X20-5-8IN | 97539 | A P M HEXSEAL CORPORATION |
| S1-4-20X5-8 | 97539 | A P M HEXSEAL CORPORATION |
| HT14S20S10 | 56563 | ALIGN AEROSPACE LLC |
| HT14S205S10 | 56563 | ALIGN AEROSPACE LLC |
| HT14S20S10 | 0EER9 | ANIXTER INC.DBA ANIXTER |
| HT14S205S10 | 0EER9 | ANIXTER INC.DBA ANIXTER |
| 10975128 | 19203 | PICATINNY ARSENAL |
Technical Data | NSN 5305-00-854-9993
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.625 INCHES MAXIMUM |
| FASTENER LENGTH | 0.625 INCHES NOMINAL |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SCREW SURFACE TREATMENT | PASSIVATE |
| HEAD STYLE | 4 UNDERCUT HEXAGON |
| HEAD DIAMETER | 0.517 INCHES NOMINAL |
| HEAD HEIGHT | 0.148 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |