The Concentrator,oxygen,aircraft, cataloged under National Stock Number 1660-01-558-6659, 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. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-558-6659 |
| Item Name | Concentrator,oxygen,aircraft |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | AS DETERMINED BY DRAWING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 3261129-0103 | Transaero, Inc. (USA) |
| 901-325-601-109 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 3261129-0103 | 3/3 Design control — primary reference U.S. Government activity |
NSN 1660-01-558-6659 is a Concentrator,oxygen,aircraft, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-558-6659 has 2 manufacturer part numbers on file: 3261129-0103 (Transaero, Inc.), 901-325-601-109 (The Boeing Company).
Key specifications for 1660-01-558-6659: End Item Identification: MV-22 AIRCRAFT; Reference Number Differentiating Characteristics: AS DETERMINED BY DRAWING. 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.
NSN 1660-01-558-6659 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.