The Filter,fluid, cataloged under National Stock Number 1650-01-059-8621, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Pall Aeropower Corporation. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-059-8621 |
| Primary Part Number | AC-900-121PY1 |
| Item Name | Filter,fluid |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Design Type | NONREUSABLE |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| 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 |
|---|---|
| AC-900-121PY1 PRIMARY | Pall Aeropower Corporation (USA) |
| AC-900-121PY1 | Pall Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| 7531096-30 | 5/9 Secondary reference U.S. Government activity |
| 7531096-30 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-01-059-8621 is a Filter,fluid, manufactured by Pall Aeropower Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-059-8621 has 2 manufacturer part numbers on file: AC-900-121PY1 (Pall Aeropower Corporation), AC-900-121PY1 (Pall Gmbh).
Key specifications for AC-900-121PY1: Design Type: NONREUSABLE; Media for Which Designed: FUEL/OIL, HYDROCARBON. 2 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.