The Filter,water Purification, cataloged under National Stock Number 4610-01-694-9790, is classified within Federal Supply Class 4610 (Water Purification Equipment) of the Water Purification and Sewage Treatment group. The manufacturer of record is Pentair Filtration Solutions, Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4610-01-694-9790 |
| Primary Part Number | 252-20220 |
| Item Name | Filter,water Purification |
| FSC / FSG | 4610 / 46 — Water Purification Equipment |
| Manufacturer | Pentair Filtration Solutions, Llc |
| Status | ACTIVE |
| Body Diameter | 2.8 INCHES NOMINAL IN |
| Mounting Hole Quantity | 2 |
| Body Overall Length | 20.0 INCHES NOMINAL IN |
| Filtration Rating in Microns | 0.5 NOMINAL |
| Design Type | LIMITED |
| Temp Rating | 35.0 FAHRENHEIT MINIMUM AND 100.0 FAHRENHEIT MAXIMUM DEGF |
| Style Designator | CYLINDRICAL W/ CONTAINER (RIGID) |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Filtering Element Quantity | 1 |
| Media for Which Designed | WATER |
| Mounting Type | UNTHREADED HOLE TOP |
| Mounting Type | UNTHREADED HOLE BOTTOM |
| 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 |
|---|---|
| 252-20220 PRIMARY | Pentair Filtration Solutions, Llc (USA) |
| Reference | Meaning |
|---|---|
| CTOS-20 | 5/9 Secondary reference Thompson & Little, Inc. |
NSN 4610-01-694-9790 is a Filter,water Purification, manufactured by Pentair Filtration Solutions, Llc, classified under FSC 4610, Water Purification Equipment. Status: active.
NSN 4610-01-694-9790 has 1 manufacturer part number on file: 252-20220 (Pentair Filtration Solutions, Llc).
Key specifications for 252-20220: Body Diameter: 2.8 INCHES NOMINAL IN; Mounting Hole Quantity: 2; Body Overall Length: 20.0 INCHES NOMINAL IN; Filtration Rating in Microns: 0.5 NOMINAL. 12 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.