The Housing Assembly,hy, cataloged under National Stock Number 1650-00-548-2678, 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 Thomas Instrument, Incorporated. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1650-00-548-2678 |
| Primary Part Number | 41001554 |
| Item Name | Housing Assembly,hy |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Thomas Instrument, Incorporated |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| 41001554 | Thomas Instrument, Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 41001554 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1650-00-548-2678 is a Housing Assembly,hy, manufactured by Thomas Instrument, Incorporated, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-548-2678 has 1 manufacturer part number on file: 41001554 (Thomas Instrument, Incorporated).
Key specifications for 41001554: Overall Height: 4.270 INCHES NOMINAL IN; Overall Length: 2.757 INCHES NOMINAL IN; Overall Width: 2.50 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: HOUSING ASSEMBLY,UPPER. 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 1650-00-548-2678 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.