The Filter,fluid, cataloged under National Stock Number 2940-00-405-4904, is classified within Federal Supply Class 2940 (Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2940-00-405-4904 |
| Primary Part Number | 211-283 |
| Item Name | Filter,fluid |
| FSC / FSG | 2940 / 29 — Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| First Discharge Connection Type | THREADED INTERNAL TUBE SIDE |
| First Discharge Thread Quantity Per Inch | 16 |
| First Intake Nominal Thread Size | 0.750 INCHES IN |
| Drop Pressure | ERR-060 |
| First Intake Thread Series Designator | UNF |
| Design Type | REUSABLE |
| Body Outside Diameter | 1.750 INCHES NOMINAL IN |
| First Intake Thread Direction | RIGHT-HAND |
| First Intake Connection Type | THREADED EXTERNAL TUBE SIDE |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| First Discharge Nominal Thread Size | 0.750 INCHES IN |
| Filtering Element Quantity | 1 |
| Body Length | 4.500 INCHES NOMINAL IN |
| First Discharge Thread Direction | RIGHT-HAND |
| First Discharge Connection Relationship to Intake Connection | NOT IDENTICAL |
| Material | STEEL CORROSION RESISTING SEDIMENT BOWL |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| First Intake Thread Quantity Per Inch | 16 |
| Mounting Type | THREADED STUD SIDE |
| First Discharge Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 211-283 PRIMARY | Donaldson Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2601769-2 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 2940-00-405-4904 is a Filter,fluid, manufactured by Donaldson Company, Inc., classified under FSC 2940, Engine Air and Oil Filters, Strainers, and Cleaners, Nonaircraft. Status: active.
NSN 2940-00-405-4904 has 1 manufacturer part number on file: 211-283 (Donaldson Company, Inc.).
Key specifications for 211-283: First Discharge Connection Type: THREADED INTERNAL TUBE SIDE; First Discharge Thread Quantity Per Inch: 16; First Intake Nominal Thread Size: 0.750 INCHES IN; Drop Pressure: ERR-060. 20 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.