Part Details | MACHINE SCREW
5305-01-143-7441 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: GS20G416, GS20G4-16, GS20G416, GS20G4-16, GS20G416, GS20G4-16, 5305-01-143-7441, 01-143-7441, 5305011437441, 011437441
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 08, 1982 | 01-143-7441 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-143-7441
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| GS20G4-16 | 85480 | BRADY UNITED STATES |
| GS20G4-16 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS |
| GS20G4-16 | 23050 | PRODUCT COMPONENTS CORPORATION |
Technical Data | NSN 5305-01-143-7441
| 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 | 0.819 INCHES MINIMUM AND 0.890 INCHES MAXIMUM |
| FASTENER LENGTH | 1.000 INCHES NOMINAL |
| SCREW MATERIAL | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | L-P-410 CL 6 TO 6 FED SPEC SINGLE MATERIAL RESPONSE |
| COLOR | BLACK |
| HEAD STYLE | 9 DISHED HEXAGON |
| HEAD DIAMETER | 0.442 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | 0 CROSS RECESS TYPE 1 |