# NSN 5998-01-737-3681: Interface Unit, Input-Output

NSN 5998-01-737-3681 (also written 5998017373681; NIIN 01-737-3681) is an interface unit, input-output in Federal Supply Class 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 5998-01-737-3681 (5998017373681)
- NIIN: 01-737-3681 (017373681)
- Item name: INTERFACE UNIT,INPUT-OUTPUT
- Federal Supply Class: [FSC 5998 Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware](https://nsnexplorer.com/fsc/5998/)
- Federal Supply Group: [FSG 59](https://nsnexplorer.com/group/59/)
- Acquisition method suffix code: AMSC Q: the government lacks adequate data or rights, but breakout to competition is expected. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 2291121 | 5Y407 | PHOENIX CONTACT DEVELOPMENT AND MANUFACTURING INC DBA PROTIQ USA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-02 | [SPE7M526P4340](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5998017373681) | INTERFACE UNIT, INPUT-OUTPUT | — | $869.67 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=5998017373681&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5998017373681
- 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/5998-01-737-3681/
JSON: https://nsnexplorer.com/api/nsn/5998-01-737-3681.json