The Nozzle Assembly,turbine, cataloged under National Stock Number 1660-00-162-0653, 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 Fdh Defense Aftermarket, Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1660-00-162-0653 |
| Primary Part Number | 750631-1 |
| Item Name | Nozzle Assembly,turbine |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Fdh Defense Aftermarket, Llc |
| Status | ACTIVE |
| FSC Application Data | HEAT AND VENT SYSTEM,AIRCRAFT |
| General Characteristics Item Description | CONSIST OF 1 NOZZLE PART NO. 750369-1,2 RING INSULATIONS PART NO.521723,1 RING PART NO. 562401,1 BAFFLE PART NO. 55589,7 STUDS PARTNO. 553959,FSCM 73030 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 750631-1 | Fdh Defense Aftermarket, Llc (USA) |
| Reference | Meaning |
|---|---|
| 750370-1 | 5/9 Secondary reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
| 750631-1 | 3/9 Design control — primary reference Hamilton Sundstrand Corporation Dba Collins Aerospace |
NSN 1660-00-162-0653 is a Nozzle Assembly,turbine, manufactured by Fdh Defense Aftermarket, Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-162-0653 has 1 manufacturer part number on file: 750631-1 (Fdh Defense Aftermarket, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-329-4321. Verify interchangeability with system specifications before substitution.
Key specifications for 750631-1: FSC Application Data: HEAT AND VENT SYSTEM,AIRCRAFT; General Characteristics Item Description: CONSIST OF 1 NOZZLE PART NO. 750369-1,2 RING INSULATIONS PART NO.521723,1 RING PART NO. 562401,1 BAFFLE PART NO. 55589,7 STUDS PARTNO. 553959,FSCM 73030. 2 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 1660-00-162-0653 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.