The Filter Element,fluid, cataloged under National Stock Number 4330-00-321-1285, 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 Pti Technologies Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4330-00-321-1285 |
| Primary Part Number | 7578417 |
| Item Name | Filter Element,fluid |
| FSC / FSG | 4330 / 43 — Centrifugals, Separators, and Pressure and Vacuum Filters |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Body Diameter | 0.482 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN |
| Design Type | LIMITED |
| Style Designator | ROUND (BASICALLY FLAT) |
| Media for Which Designed | FUEL/OIL, HYDROCARBON |
| Body Thickness | 0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4330-00-321-1285 is a Filter Element,fluid, manufactured by Pti Technologies Inc., classified under FSC 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. Status: active.
NSN 4330-00-321-1285 has 2 manufacturer part numbers on file: 231973 (Honeywell International Inc. Div Aerospace - Torrance), 7578417 (Pti Technologies Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5985-01-357-7078. Verify interchangeability with system specifications before substitution.
Key specifications for 7578417: Body Diameter: 0.482 INCHES MINIMUM AND 0.484 INCHES MAXIMUM IN; Design Type: LIMITED; Style Designator: ROUND (BASICALLY FLAT); Media for Which Designed: FUEL/OIL, HYDROCARBON. 5 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.