Part Details | CENTRIFUGAL FAN
4140-01-077-3981 A nonpositive displacement mechanical device having a centrifugal fan impeller inclosed within a housing. It is designed to move air or gas over a wide range of volumes and pressures. The air or gas is drawn in axially and discharged radially or drawn in radially and discharged axially by centrifugal force through an outlet in the housing.
Alternate Parts: 1NB412, 1NB412, 4140-01-077-3981, 01-077-3981, 4140010773981, 010773981
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
41 | MAY 23, 1979 | 01-077-3981 | 04254 ( FAN, CENTRIFUGAL ) |
REFERENCE DRAWINGS & PICTURES
FIXED, RECTANGULAR OUTLETS

Cross Reference | NSN 4140-01-077-3981
Part Number | Cage Code | Manufacturer |
---|---|---|
1NB412 | 33414 | ZERO CORP |
1NB412 | 03522 | ZERO CORPMCLEAN ENGINEERING DIV |
Technical Data | NSN 4140-01-077-3981
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | FIXED, RECTANGULAR OUTLETS |
WIDTH | 8.906 INCHES NOMINAL |
LENGTH | 6.469 INCHES NOMINAL |
OUTLET INSIDE HEIGHT | 2.594 INCHES NOMINAL |
HEIGHT | 6.797 INCHES NOMINAL |
DRIVE TYPE | DIRECT |
ROTATION DIRECTION FOR WHICH DESIGNED | COUNTERCLOCKWISE |
STATIC PRESSURE AT SPECIFIED AIR FLOW RATE | 0.0 INCHES OF WATER |