# NSN 4330-01-643-0445: Pneumatic Muffler, Exhaust-Intake

NSN 4330-01-643-0445 (also written 4330016430445; NIIN 01-643-0445) is a pneumatic muffler, exhaust-intake in Federal Supply Class 4330, Centrifugals, Separators, and Pressure and Vacuum Filters. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 4330-01-643-0445 (4330016430445)
- NIIN: 01-643-0445 (016430445)
- Item name: PNEUMATIC MUFFLER,EXHAUST-INTAKE
- Federal Supply Class: [FSC 4330 Centrifugals, Separators, and Pressure and Vacuum Filters](https://nsnexplorer.com/fsc/4330/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | MUFFLER |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 80265-1 | 56529 | HYDRAULICS INTERNATIONAL, INC. DBA HYDRAULICS INTERNATIONAL INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4330016430445&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4330016430445
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/4330-01-643-0445/
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