# NSN 1660-01-223-1222: Duct Assembly, Air Conditioning-H

NSN 1660-01-223-1222 (also written 1660012231222; NIIN 01-223-1222) is a duct assembly, air conditioning-h in Federal Supply Class 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 1660-01-223-1222 (1660012231222)
- NIIN: 01-223-1222 (012231222)
- Item name: DUCT ASSEMBLY,AIR CONDITIONING-H
- Federal Supply Class: [FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment](https://nsnexplorer.com/fsc/1660/)
- Federal Supply Group: [FSG 16](https://nsnexplorer.com/group/16/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | B-1B AIRCRAFT |
| BWJF | SIDE FOR WHICH DESIGNED | RIGHT SIDE |
| CZDJ | AIRCRAFT LOCATION | AFT RH CREW COMPARTMENT CREW AIR SUPPLY DUCT |
| CZEK | AIRCRAFT MISSION DESIGN SERIES | B-1B |
| FEAT | SPECIAL FEATURES | PREPREGNATED EPOXY/GLASS; CONSIST OF -003 DUCT, -007 DUCT, -005 FLANGE; NHA L5351025 |
| MATT | MATERIAL | GLASS FIBER |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| L5351727-001 | 43999 | THE BOEING COMPANY DIV LEGACY AM&M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1660012231222&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660012231222
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/1660-01-223-1222/
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