Part Details | MACHINE SCREW
5305-01-388-1821 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: 8456641066, 845-6641066, 8456641063PN2, 845-6641063PN2, 5305-01-388-1821, 01-388-1821, 5305013881821, 013881821
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | MAR 23, 1994 | 01-388-1821 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-388-1821
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 845-6641066 | 53711 | NAVAL SEA SYSTEMS COMMAND |
| 845-6641063PN2 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 5305-01-388-1821
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.112 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.086 INCHES NOMINAL |
| FASTENER LENGTH | 0.156 INCHES NOMINAL |
| SCREW MATERIAL | STEEL COMP 302 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 COND A FED SPEC SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT | PASSIVATE |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 TY 6 FED SPEC SINGLE TREATMENT RESPONSE |
| HEAD STYLE | 0 CROWNED HEXAGON |
| HEAD DIAMETER | 0.195 INCHES MINIMUM AND 0.225 INCHES MAXIMUM |
| HEAD HEIGHT | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |
| FEATURES PROVIDED | O RING |
| SPECIAL FEATURES | HEAD HAS THREE SLOTTED DRIVES EQUALLY SPACED 60.0 DEG. APART. O-RING MATL: KALREZ O-RING,COMPOUND 4079 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |