# NSN 4210-01-643-8401: Tube Assembly, Fire Extinguishing

NSN 4210-01-643-8401 (also written 4210016438401; NIIN 01-643-8401) is a tube assembly, fire extinguishing in Federal Supply Class 4210, Fire Fighting Equipment. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Nov 2026.

## Identification

- NSN: 4210-01-643-8401 (4210016438401)
- NIIN: 01-643-8401 (016438401)
- Item name: TUBE ASSEMBLY,FIRE EXTINGUISHING
- Federal Supply Class: [FSC 4210 Fire Fighting Equipment](https://nsnexplorer.com/fsc/4210/)
- Federal Supply Group: [FSG 42](https://nsnexplorer.com/group/42/)
- Acquisition method suffix code: AMSC R: the government owns neither the data nor the rights, and obtaining them is judged uneconomical. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

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

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 423117 | 05BU0 | KIDDE TECHNOLOGIES INC DBA KIDDE DUAL SPECTRUM DIV KIDDE DUAL SPECTRUM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 432117 | 05BU0 | KIDDE TECHNOLOGIES INC DBA KIDDE DUAL SPECTRUM DIV KIDDE DUAL SPECTRUM | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-11-04 | [SPE4A527P1145](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4210016438401) | TUBE ASSEMBLY, FIRE EXTINGUISHING SYSTEM | KIDDE TECHNOLOGIES INC DBA KIDDE DUAL SPECTRUM DIV KIDDE DUAL SPECTRUM | $17,550.00 |
| 2026-09-03 | [SPE4A526P7913](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4210016438401) | TUBE ASSEMBLY, FIRE | KIDDE TECHNOLOGIES INC DBA KIDDE DUAL SPECTRUM DIV KIDDE DUAL SPECTRUM | $5,850.00 |
| 2026-09-03 | [SPE4A526P7913](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4210016438401) | TUBE ASSEMBLY, FIRE | KIDDE TECHNOLOGIES INC DBA KIDDE DUAL SPECTRUM DIV KIDDE DUAL SPECTRUM | $5,850.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4210016438401&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4210016438401
- 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/4210-01-643-8401/
JSON: https://nsnexplorer.com/api/nsn/4210-01-643-8401.json