The Valve,oxygen, cataloged under National Stock Number 1650-01-141-6892, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Aerospace Lighting Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1650-01-141-6892 |
| Primary Part Number | 2521 |
| Item Name | Valve,oxygen |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Aerospace Lighting Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY 2024-T4; 2.120 IN. DIA; 1.150 IN. W; 2 HOLES 0.067 IN. DIA; 1.859 IN. CENTER TO CENTER OF HOLES; TEMP RANGE MINUS 65 DEGREES F TO PLUS 250 DEGREES F; W .16 LB; FINISH ANODIC LBS |
| 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 |
|---|---|
| 2521-00 | Aerospace Lighting Corporation (USA) |
| 2521 PRIMARY | Aerospace Lighting Corporation (USA) |
| Reference | Meaning |
|---|---|
| Z00.N7891014521 | 5/9 Secondary reference Daher Aerospace - Ex Socata |
| 2521 | 3/9 Design control — primary reference U.S. Government activity |
NSN 1650-01-141-6892 is a Valve,oxygen, manufactured by Aerospace Lighting Corporation, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-141-6892 has 2 manufacturer part numbers on file: 2521-00 (Aerospace Lighting Corporation), 2521 (Aerospace Lighting Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-719-6203. Verify interchangeability with system specifications before substitution.
Key specifications for 2521: General Characteristics Item Description: ALUMINUM ALLOY 2024-T4; 2.120 IN. DIA; 1.150 IN. W; 2 HOLES 0.067 IN. DIA; 1.859 IN. CENTER TO CENTER OF HOLES; TEMP RANGE MINUS 65 DEGREES F TO PLUS 250 DEGREES F; W .16 LB; FINISH ANODIC LBS. 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 1650-01-141-6892 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.