The Diaphragm Assembly, cataloged under National Stock Number 1660-00-780-6049, 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 Hartzell Engine Technologies Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-780-6049 |
| Primary Part Number | 07D02 |
| Item Name | Diaphragm Assembly |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Hartzell Engine Technologies Llc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 07D02 PRIMARY | Hartzell Engine Technologies Llc (USA) |
| Reference | Meaning |
|---|---|
| 07D02 | 3/9 Design control — primary reference Kelly Aerospace Power Systems, Inc. Dba Consolidated Fuel Systems |
| 07D02 | 5/9 Secondary reference Grimes Aerospace Company |
NSN 1660-00-780-6049 is a Diaphragm Assembly, manufactured by Hartzell Engine Technologies Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-780-6049 has 1 manufacturer part number on file: 07D02 (Hartzell Engine Technologies Llc).
Key specifications for 07D02: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: H-46 HELICOPTER. 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 1660-00-780-6049 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.