The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-502-1900, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-502-1900 |
| Primary Part Number | 70500-002058-098 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Aircraft Station Number | FUS STA 247 |
| Aircraft Location | SIDE WALL |
| Aircraft Mission Design Series | CH-60 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 70500-002058-098 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 70500-002058 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 1660-01-502-1900 is a Duct Assembly,air Conditioning-H, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-502-1900 has 1 manufacturer part number on file: 70500-002058-098 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70500-002058-098: Aircraft Station Number: FUS STA 247; Special Features: MATERIAL TO BE KEVLAR PREGREGNATED PER SS9612-008; NHA 70500-02058-018; OPPOSITE -097; Aircraft Location: SIDE WALL; Part Name Assigned by Controlling Agency: INSULATION ASSEMBLY. 3 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.
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.