# NSN 1660-01-220-4386: Diaphragm, Rotary Turbine

NSN 1660-01-220-4386 (also written 1660012204386; NIIN 01-220-4386) is a diaphragm, rotary turbine in Federal Supply Class 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 1660-01-220-4386 (1660012204386)
- NIIN: 01-220-4386 (012204386)
- Item name: DIAPHRAGM,ROTARY TURBINE
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | B-1B ACFT |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | NICKEL ALLOY X-750; O.D. APPROX 3.9363 IN.; CENTER HOLE DIA APPROX 2.764 IN.; THICKNESS APPROX 0.0035 IN. |
| ZZZV | FSC APPLICATION DATA | TURBINE,COOLING P/N788104-2-1 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 782167-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-17 | [SPE4AX22D9404/SPE4A626F458N](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660012204386) | DIAPHRAGM, ROTARY TURBINE | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $4,676.91 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1660012204386&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660012204386
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/1660-01-220-4386/
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