# NSN 4520-01-561-1996: Heater, Duct Type, Po

NSN 4520-01-561-1996 (also written 4520015611996; NIIN 01-561-1996) is a heater, duct type, po in Federal Supply Class 4520, Space and Water Heating Equipment. It was last purchased in Aug 2026.

## Identification

- NSN: 4520-01-561-1996 (4520015611996)
- NIIN: 01-561-1996 (015611996)
- Item name: HEATER, DUCT TYPE, PO
- Federal Supply Class: [FSC 4520 Space and Water Heating Equipment](https://nsnexplorer.com/fsc/4520/)
- Federal Supply Group: [FSG 45](https://nsnexplorer.com/group/45/)

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-05 | [SPE8EG24D0003/SPE8E826F0677](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520015611996) | HEATER, DUCT TYPE, PO | WINDWARD ENTERPRISES, LLC | $60,936.25 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4520015611996&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520015611996
- 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/4520-01-561-1996/
JSON: https://nsnexplorer.com/api/nsn/4520-01-561-1996.json