| OPERATION METHOD | HAND |
| CHAIN TYPE | PROOF COIL |
| HOOK QUANTITY | 1 |
| LOAD ELEMENT QUANTITY PER HOOK | 1 |
| SUSPENSION MOUNTING METHOD | TROLLEY |
| CHAIN MATERIAL DIAMETER | 0.375 INCHES NOMINAL |
| MOUNTING POSITION | SWIVEL |
| MECHANICAL ADVANTAGE METHOD | SPUR GEAR |
| TROLLEY SUSPENSION STYLE | PLAIN, STANDARD I BEAM, WHEELS VERTICAL |
| FLANGE WIDTH | 4.000 INCHES MINIMUM AND |
| 4.660 INCHES MAXIMUM |
| TRACK HEIGHT | 5.500 INCHES NOMINAL |
| TRACK UNDERSIDE DISTANCE TO LOAD HOOK BEARING SURFACE IN FULLY RAISED POSITION | 16.000 INCHES NOMINAL |
| WHEEL CENTER TO CENTER DISTANCE | 3.500 INCHES NOMINAL |
| TROLLEY TYPE | PLAIN |
| MAXIMUM LIFT HEIGHT | 9.0 FEET |
| MAXIMUM LOAD RATING | 4000.0 POUNDS |
| SPECIAL FEATURES | HOOKS W/SAFETY LATCHES; MINIMUM CURVE OF I BEAM TRACK 36.000 IN. RADIUS; TROLLEY TRACK CLAMP; PULL TO TRAVERSE TROLLEY MAXIMUM 60.0 POUNDS; ADJUSTABLE TROLLEY WHEEL FLANGE WIDTHS |
| NONDEFINITIVE SPEC/STD DATA | 2 CLASS AND |
| D TYPE |
| DEPARTURE FROM CITED DESIGNATOR | AS DIFFERENTIATED BY ADJUSTABLE TROLLEY FLANGE WIDTHS |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-H-904 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M904 CL2 TYD 4000LB |