# NSN 1660-01-399-1765: Mask, Oxygen

NSN 1660-01-399-1765 (also written 1660013991765; NIIN 01-399-1765) is a mask, oxygen in Federal Supply Class 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. 4 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 1660-01-399-1765 (1660013991765)
- NIIN: 01-399-1765 (013991765)
- Item name: MASK,OXYGEN
- 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 |
| --- | --- | --- |
| ABFF | FURNISHED ITEMS | MICROPHONE |
| AGAV | END ITEM IDENTIFICATION | MBU-20 MASK,COMBAT EDGE |
| APGF | DESIGN TYPE | MOUTH AND NOSE |
| BSRX | OXYGEN SYSTEM TYPE | PRESSURE DEMAND |
| SUPP | SUPPLEMENTARY FEATURES | SIZE: LARGE WIDE; CONCEPT 1 DESIGSN; T.O. 14P3-1-161; BAYONET TYPE FASTENER |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1660PL1625838 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| G010-1100-44 | 60240 | GENTEX CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| G010-1100-54 | 60240 | GENTEX CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| G010-1100-74 | 60240 | GENTEX CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-15 | [SPE4AX17D9402/SPE4A727F0391](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660013991765) | MASK, OXYGEN | GENTEX CORP | $156,784.81 |
| 2026-10-07 | [SPE4AX17D9402/SPE4A727F0067](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660013991765) | MASK, OXYGEN | GENTEX CORP | $156,784.81 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1660013991765&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1660013991765
- 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/1660-01-399-1765/
JSON: https://nsnexplorer.com/api/nsn/1660-01-399-1765.json