# NSN 1660-01-168-4779: Duct Assembly, Air Conditioning-H

NSN 1660-01-168-4779 (also written 1660011684779; NIIN 01-168-4779) 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. The government has 1 open solicitation for it.

## Identification

- NSN: 1660-01-168-4779 (1660011684779)
- NIIN: 01-168-4779 (011684779)
- 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 2026-11-04)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 3.800 |
| AGAV | END ITEM IDENTIFICATION | AV-8 AIRCRAFT |
| CZEK | AIRCRAFT MISSION DESIGN SERIES | AV-8 |
| FEAT | SPECIAL FEATURES | TWO 0.147 IN. NOM DIA HOLES,1.380 IN. C TO C ACROSS H OF FLANGE |
| MATT | MATERIAL | ALUMINUM ALLOY AND TITANIUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED SPEC 1ST MATERIAL RESPONSE QQ-A-250 TO 8 AND FED SPEC 2ND MATERIAL RESPONSE WW-T-700 TO 4 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 75A830626-1001 | 76301 | THE BOEING COMPANY DIV DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A0-27-T-0460 | 1 | 2026-11-12 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1660011684779&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1660011684779&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660011684779
- 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.

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