| ASA STANDARD CHAIN NUMBER | 25 |
| BORE DIAMETER | 0.625 INCHES MINIMUM AND 0.626 INCHES MAXIMUM |
| BORE LENGTH | 0.901 INCHES MINIMUM AND 0.906 INCHES MAXIMUM |
| BORE TYPE | STRAIGHT |
| DESIGN FORM | PLAIN |
| FACE WIDTH | 0.103 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| FIRST END GROOVE DIAMETER | 0.812 INCHES NOMINAL AA END |
| FIRST END GROOVE WIDTH | 0.277 INCHES MINIMUM AND 0.282 INCHES MAXIMUM AA END |
| FIRST STEP LENGTH | 0.360 INCHES MINIMUM AND 0.365 INCHES MAXIMUM AA END |
| FIRST STEP DIAMETER | 0.937 INCHES NOMINAL AA END |
| FSC APPLICATION DATA | WINCH,ACFT MTD |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| HUB OUTSIDE DIAMETER | 0.811 INCHES MINIMUM AND 0.812 INCHES MAXIMUM AA END |
| HUB OUTSIDE DIAMETER | 0.812 INCHES NOMINAL BB END |
| OUTSIDE DIAMETER | 1.246 INCHES NOMINAL |
| OVERALL LENGTH | 0.901 INCHES MINIMUM AND 0.906 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-H-7493,COMP 4620,COND E4 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4620 |
| METALLIC HARDNESS RATING AND LOCATION | 55.0 ROCKWELL C MINIMUM HUB |
| PITCH DIAMETER | 1.124 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | STEPPED OR GROOVED |
| SECOND STEP LENGTH | 0.125 INCHES NOMINAL AA END |
| STYLE DESIGNATOR | PLAIN |
| SURFACE TREATMENT | CADMIUM |
| TEETH HARDNESS RATING | 27.0 ROCKWELL C MINIMUM |
| TEETH QUANTITY PER ROW | 14 |
| TEETH ROW QUANTITY | 1 |
| TOOTH PITCH | 0.250 INCHES NOMINAL |