The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-00-948-0572, 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 The Boeing Company Div Defense. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-948-0572 |
| Primary Part Number | 53-83558-301 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Supplementary Features | FUNCTIONAL DESCRIPTION:USED AS FWD FUSELAGE COMPARTMENT COOLING DUCT ASSEMBLY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 53-83558-301 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 1660-00-948-0572 is a Duct Assembly,air Conditioning-H, manufactured by The Boeing Company Div Defense, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-948-0572 has 1 manufacturer part number on file: 53-83558-301 (The Boeing Company Div Defense).
Key specifications for 53-83558-301: Supplementary Features: FUNCTIONAL DESCRIPTION:USED AS FWD FUSELAGE COMPARTMENT COOLING DUCT ASSEMBLY; Special Features: CONSIST OF 2 TUBE,1 PLATE; SUPERSEDED P/N -15; NHA 53-83500; LOCATED AT CFS 8.40; End Item Identification: ACFT MODEL RF-4C. 1 specification is documented in the U.S. Government catalog.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 1660-00-948-0572 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.