Part Details | MACHINE SCREW
5305-01-139-0838 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: MS956303, MS9563-03, 123335, 5305-01-139-0838, 01-139-0838, 5305011390838, 011390838
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | SEP 24, 1982 | 01-139-0838 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE HEXAGON W/ HOLE
DOUBLE HEXAGON LONGITUDINAL HOLE
Cross Reference | NSN 5305-01-139-0838
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MS9563-03 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
| 123335 | 83311 | UNISON INDUSTRIES, LLC |
Technical Data | NSN 5305-01-139-0838
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| THREAD QUANTITY PER INCH | 40 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.224 INCHES MINIMUM AND 0.264 INCHES MAXIMUM |
| FASTENER LENGTH | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| SCREW MATERIAL | IRON ALLOY 660 |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| MINIMUM TENSILE STRENGTH | 130000 POUNDS PER SQUARE INCH |
| HEAD STYLE | DOUBLE HEXAGON W/ HOLE |
| HEAD HEIGHT | 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.030 INCHES MINIMUM |
| HEAD HOLE CONFIGURATION STYLE | DOUBLE HEXAGON LONGITUDINAL HOLE |
| HOLE QUANTITY | 4 |
| HOLE DIAMETER | 0.047 INCHES NOMINAL |