The Indicator,oxygen Flow, cataloged under National Stock Number 1660-01-042-5989, 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 Hickok Waekon Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1660-01-042-5989 |
| Primary Part Number | 562-766 |
| Item Name | Indicator,oxygen Flow |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Hickok Waekon Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 562-766 PRIMARY | Hickok Waekon Llc (USA) |
| Reference | Meaning |
|---|---|
| 2022710-05 | 5/9 Secondary reference Raytheon Technical Services Company |
| 2022710-05 | 7/2 Vendor item drawing reference Cae Usa Inc. |
NSN 1660-01-042-5989 is a Indicator,oxygen Flow, manufactured by Hickok Waekon Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-042-5989 has 1 manufacturer part number on file: 562-766 (Hickok Waekon Llc).
Key specifications for 562-766: Special Features: RANGE 0 TO 2000 PSI;FLUORESCENT LETTERS AND NUMBERS. 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.
NSN 1660-01-042-5989 has DEMIL Code B. 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.