The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-256-4713, 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 Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-01-256-4713 |
| Primary Part Number | 16P1921-1 |
| Item Name | Duct Assembly,air Conditioning-H |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc |
| Status | ACTIVE |
| Material Document and Classification | AMS4218-T6 MFR REF SINGLE MATERIAL RESPONSE |
| Aircraft Location | FUSELAGE SECTION |
| Material | ALUMINUM ALLOY |
| Side for Which Designed | LEFT SIDE |
| Aircraft Mission Design Series | F-16 |
| 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 |
|---|---|
| 16P1921-1 | Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc (USA) |
| Reference | Meaning |
|---|---|
| 16P1921-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-256-4713 is a Duct Assembly,air Conditioning-H, manufactured by Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-256-4713 has 1 manufacturer part number on file: 16P1921-1 (Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc).
Key specifications for 16P1921-1: Material Document and Classification: AMS4218-T6 MFR REF SINGLE MATERIAL RESPONSE; Special Features: ENGINE COMPARTMENT VENT INLET; Aircraft Location: FUSELAGE SECTION; Material: ALUMINUM ALLOY. 5 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 1660-01-256-4713 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.