The Power Unit,ram Air,emergency, cataloged under National Stock Number 1650-00-409-1555, 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 Honeywell International Inc. Div Aerospace - Torrance. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Power Unit,ram Air,emergency |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | Honeywell International Inc. Div Aerospace - Torrance (CAGE 70210); L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (CAGE 00752) |
| Parameter | Value |
|---|---|
| NSN | 1650-00-409-1555 |
| Primary Part Number | 953036-5-1 |
| Item Name | Power Unit,ram Air,emergency |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| 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 | V |
| Part Number | Manufacturer |
|---|---|
| 953036-5-1 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| 334094-2 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products (USA) |
| Reference | Meaning |
|---|---|
| 1128SCP499-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| PU726ALQ99V | 5/1 Secondary reference U.S. Government activity |
| 1128SCP499-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
NSN 1650-00-409-1555 is a Power Unit,ram Air,emergency, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-409-1555 has 2 manufacturer part numbers on file: 953036-5-1 (Honeywell International Inc. Div Aerospace - Torrance), 334094-2 (L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products).
1 possible match (shared part number, not a government interchangeability claim): 2995-00-593-4213. Verify interchangeability with system specifications before substitution.
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 1650-00-409-1555 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.