The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-221-9493, 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 Snowline Aerospace, Inc. Dba Snowline Aerospace Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-221-9493 |
| Primary Part Number | 919293-1 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Snowline Aerospace, Inc. Dba Snowline Aerospace Inc |
| Status | ACTIVE |
| Aircraft Mission Design Series | P-3C |
| 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 |
|---|---|
| 919293-1 | Snowline Aerospace, Inc. Dba Snowline Aerospace Inc (USA) |
| 919293-1 | Beacon Industries, Inc. Dba Beacon Technology Co (USA) |
| 919293-1 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| 919293-1 | Williams Aerospace & Manufacturing Inc (USA) |
| 919293-1 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 919293-1 | Grace Aerospace Llc (USA) |
| Reference | Meaning |
|---|---|
| 919293-1 | 5/9 Secondary reference Rohr, Inc. Dba Rohr Industries Inc Div Rohr Inc., a Part of Collins Aerospace |
| 919293-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-221-9493 is a Duct Assembly,air Conditioning-H, manufactured by Snowline Aerospace, Inc. Dba Snowline Aerospace Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-221-9493 has 6 manufacturer part numbers on file: 919293-1 (Snowline Aerospace, Inc. Dba Snowline Aerospace Inc), 919293-1 (Beacon Industries, Inc. Dba Beacon Technology Co), 919293-1 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co), 919293-1 (Williams Aerospace & Manufacturing Inc), 919293-1 (Allison Transmission Inc Dba Allison Transmission, Inc) and 1 more.
Key specifications for 919293-1: End Item Identification: P-3C AIRCRAFT; Aircraft Mission Design Series: P-3C. 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 1660-01-221-9493 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.