NSN 5305-00-042-0671
Part Details | MACHINE SCREW
5305-00-042-0671 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: 420671, 420620, FFS92, FF-S-92, 420671, 420671, 6817B1428X516, 6817B1/4-28X5/16, MS3523886, MS35238-86, 5305-00-042-0671, 00-042-0671, 5305000420671, 000420671
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-042-0671 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
CROWNED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-00-042-0671
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 420671 | 19204 | ARMY, UNITED STATES DEPARTMENT OFTHE |
| 420620 | 19204 | ARMY, UNITED STATES DEPARTMENT OFTHE |
| FF-S-92 | 81348 | FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES |
| 420671 | 24617 | GENERAL MOTORS CORP |
| 420671 | 7X677 | GENERAL MOTORS LLCDBA GENERAL MOTORS |
| 6817B1/4-28X5/16 | 39428 | MCMASTER-CARR SUPPLY COMPANY |
| MS35238-86 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
Technical Data | NSN 5305-00-042-0671
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.204 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| FASTENER LENGTH | 0.312 INCHES NOMINAL |
| SCREW MATERIAL | 0$1$5$6$8$9$DST1020 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-633 FED SPEC ALL MATERIAL RESPONSES |
| SCREW SURFACE TREATMENT | 0$DZNA000 |
| HEAD STYLE | 0 CROWNED HEXAGON |
| HEAD DIAMETER | 0.477 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| HEAD HEIGHT | 0.086 INCHES MINIMUM AND 0.108 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |
| SPECIFICATION/STANDARD DATA | 81348-FF--92 GOVERNMENT SPECIFICATION AND 96906-MS35238 TO CANCELED TO GOVERNMENT STANDARD |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 2S STYLE |
