# NSN 4820-00-159-3676: Valve, Reduced Pressure

NSN 4820-00-159-3676 (also written 4820001593676; NIIN 00-159-3676) is a valve, reduced pressure in Federal Supply Class 4820, Valves, Nonpowered. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4820-00-159-3676 (4820001593676)
- NIIN: 00-159-3676 (001593676)
- Item name: VALVE,REDUCED PRESSURE
- Federal Supply Class: [FSC 4820 Valves, Nonpowered](https://nsnexplorer.com/fsc/4820/)
- Federal Supply Group: [FSG 48](https://nsnexplorer.com/group/48/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-28)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | ALUMINUM BODY PER MIL-A-8097,COMPOSITION 2014 T6,ANODIZED SURFACE CRES SEAT PER AMS5610,QQ-S-763 CLASS 416SE,PASSIVATED SURFACE DESIGNED FOR HYDRAULIC OIL PER MIL-H-5606 3000 PSI RATED INLET PRESSURE 4500 PSI PROOF PRESSURE 7500 PSI BURST PRESSURE MINUS 65 DEG F TO PLUS 275 DEG F OPERATING TEMPERATURE INLET,OUTLET AND RETURN PORTS PER AND10050-6 REDUCED PRESSURE TO BE SET AT 300 PSI FROM 20 CU. IN. MIN TO 6 GPM FLOW RELIEF VALVE TO CRACK AT 275 PSI MAX REDUCED PRESSURE RELIEF VALVE TO FLOW 1.0 GPM MAX AT 375 PSI MAX REDUCED PRESSURE NOMINAL REGULATED PRESSURE TO BE IMPRESSED ON LEAD SEAL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 0311074-005 | 98391 | ARKWIN INDUSTRIES, INC. DBA ARKWIN INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 311074-5 | 98391 | ARKWIN INDUSTRIES, INC. DBA ARKWIN INDUSTRIES INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-26 | [SPE7MC26P3479](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820001593676) | VALVE, REDUCED PRESS | ARKWIN INDUSTRIES, INC. DBA ARKWIN INDUSTRIES INC | $54,514.50 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820001593676&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820001593676
- 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/4820-00-159-3676/
JSON: https://nsnexplorer.com/api/nsn/4820-00-159-3676.json