The Filter Element,fluid, cataloged under National Stock Number 4330-00-221-4537, is classified within Federal Supply Class 4330 (Centrifugals, Separators, and Pressure and Vacuum Filters) of the Pumps and Compressors group. The manufacturer of record is Parker-Hannifin Corporation. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4330-00-221-4537 |
| Primary Part Number | W11R10A |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Parker-Hannifin Corporation |
| Status | ACTIVE |
| Filtering Media Design | SPIRAL WOUND SINGLE FILTERING MEDIA RESPONSE |
| Body Diameter | 2.562 INCHES NOMINAL IN |
| Body Overall Length | 10.031 INCHES NOMINAL IN |
| Flow Direction | INSIDE OUT |
| Drop Pressure | ERR-060 |
| Design Type | NONREUSABLE |
| Temp Rating | 120.0 FAHRENHEIT NOMINAL DEGF |
| Style Designator | CYLINDRICAL W/OUT CONTAINER |
| Body Inside Diameter | 1.031 INCHES NOMINAL IN |
| Filtering System for Which Designed | FULL FLOW |
| Differential Pressure | ERR-060 |
| Media for Which Designed | LIQUID FOOD OR LIQUID DRUGS OR FUEL/OIL, HYDROCARBON |
| Material | CELLULOSE ACETATE FILTERING MEDIUM |
| 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 |
|---|---|
| W11R10A PRIMARY | Parker-Hannifin Corporation (USA) |
| Reference | Meaning |
|---|---|
| W50A10U | 5/9 Secondary reference Memtec America Corp Filterite Sales Div |
NSN 4330-00-221-4537 is a Filter Element,fluid, manufactured by Parker-Hannifin Corporation, classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-00-221-4537 has 1 manufacturer part number on file: W11R10A (Parker-Hannifin Corporation).
Key specifications for W11R10A: Filtering Media Design: SPIRAL WOUND SINGLE FILTERING MEDIA RESPONSE; Body Diameter: 2.562 INCHES NOMINAL IN; Body Overall Length: 10.031 INCHES NOMINAL IN; Flow Direction: INSIDE OUT. 13 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.