The Filter,fluid, cataloged under National Stock Number 1660-01-574-8648, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Starfax Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1660-01-574-8648 |
| Primary Part Number | 4220T-4TT |
| Item Name | Filter,fluid |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Starfax Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 4220T-4TT PRIMARY | Starfax Inc (USA) |
| Reference | Meaning |
|---|---|
| M096885 | 5/9 Secondary reference Aircraft Technical Development, Inc. Dba Aerocon Engineering Company |
| 1660PL2121452 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 1660-01-574-8648 is a Filter,fluid, manufactured by Starfax Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-574-8648 has 1 manufacturer part number on file: 4220T-4TT (Starfax Inc).
Key specifications for 4220T-4TT: Special Features: IN-LINE; End Item Identification: AC25-A330-1125-301 ONBOARD AIRSTAIRS; 1423-1034-113 HYDRAULIC SYSTEM. 0 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.