Part Details | MACHINE SCREW
5305-01-271-3248 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: M24240321014, M24240/3-21014, MILS24240321014, MIL-S-24240/3-21014, 5811 UNC3AX1.750LG, 5/8-11 UNC-3AX1.750LG, 5305-01-271-3248, 01-271-3248, 5305012713248, 012713248
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 23, 1988 | 01-271-3248 | 06657 ( SCREW, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE HEXAGON EXTENDED WASHER
Cross Reference | NSN 5305-01-271-3248
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| M24240/3-21014 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MIL-S-24240/3-21014 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 5/8-11 UNC-3AX1.750LG | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC |
Technical Data | NSN 5305-01-271-3248
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 11 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.578 INCHES MINIMUM AND 1.750 INCHES MAXIMUM |
| FASTENER LENGTH | 1.750 INCHES NOMINAL |
| SCREW MATERIAL | STEEL |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE |
| SCREW SURFACE TREATMENT | CADMIUM AND CHROMATE |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| HEAD HEIGHT | 0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.558 INCHES MINIMUM AND 0.566 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.863 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM |
| THREAD SURFACE FINISH | 63.0 MICROINCHES |