Part Details | MACHINE SCREW
5305-01-198-1621 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: 156971, 156971, 5305PL0797108, 5305-01-198-1621, 01-198-1621, 5305011981621, 011981621
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 05, 1985 | 01-198-1621 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-198-1621
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 156971 | 11862 | GENERAL MOTORS CORPCHEVROLET MOTOR DIV |
| 156971 | 7X677 | GENERAL MOTORS LLCDBA GENERAL MOTORS |
| 5305PL0797108 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH |
Technical Data | NSN 5305-01-198-1621
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.636 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| FASTENER LENGTH | 0.719 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| SCREW MATERIAL | STEEL |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES |
| SCREW SURFACE TREATMENT | PHOSPHATE |
| HEAD STYLE | 2 CROWNED HEXAGON |
| HEAD DIAMETER | 0.340 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |