The Filter,fluid, cataloged under National Stock Number 1660-01-433-9921, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-433-9921 |
| Item Name | Filter,fluid |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| FSC Application Data | P/N 1652417-1; BREATHING OXYGEN SYSTEM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1653037-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-433-9921 is a Filter,fluid, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
Key specifications for 1660-01-433-9921: FSC Application Data: P/N 1652417-1; BREATHING OXYGEN SYSTEM; Special Features: NAME: FILTER ASSY,OUTLET; CLEAN IN ACCORDANCE WITH ST1637806; MAJOR COMPONENTS: FILTER,ELEMENT 1647860-1; HOUSING,VALVE 1653029-1; HOUSING,FILTER 1653038-1; End Item Identification: F-15A,B,C,D,E A. 1 specification is 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.