| DOCUMENT TYPE | ENGINEERING DRAWING |
| COLOR | BLACK |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A582 ASSN STD ALL MATERIAL RESPONSES AND ASTM-A584 ASSN STD ALL MATERIAL RESPONSES |
| MATERIAL | STEEL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | GAS PISTON |
| PROPRIETARY CHARACTERISTICS | PACS |
| OVERALL DIAMETER | 0.495 INCHES NOMINAL |
| OVERALL HEIGHT | 1.062 INCHES NOMINAL |
| SHAPE | CYLINDRICAL W/SPHERICAL END |
| SPECIAL FEATURES | HEAT TREATMENT PER SIG SAUER SPECS HTS 1701059,FINAL PROTECTIVE FINISH IS BLACK OXIDE PER MIL-DTL-13924 WITH MIL-C-16173 GRADE 3 SUPPLEMENTARY OIL TREATMENT,HARDNESS IS 48-52 HRC |
| SPECIFICATION/STANDARD DATA | 81349-MIL-W-13855 GOVERNMENT SPECIFICATION |
| WEAPON SIZE DESIGNATION | 7.62 MILLIMETER |