# NSN 4820-01-630-0230: Valve, Safety Relief

NSN 4820-01-630-0230 (also written 4820016300230; NIIN 01-630-0230) is a valve, safety relief in Federal Supply Class 4820, Valves, Nonpowered. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4820-01-630-0230 (4820016300230)
- NIIN: 01-630-0230 (016300230)
- Item name: VALVE,SAFETY RELIEF
- 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 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 |
| --- | --- | --- |
| AHNC | CONNECTION STYLE | — |
| ADSR | BONNET TYPE | INSIDE SPRING |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | FIRST END INCHES 0.50 |
| AAAR | NOMINAL PIPE SIZE ACCOMMODATED | SECOND END INCHES 0.750 |
| AWLS | CONNECTION TYPE | ALL ENDS BUTT WELD PIPE |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 400.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | 1/2"INLET X 3/4" OUTLET UNION END SILVER BRAZE |
| MATT | MATERIAL | BODY BRONZE |
| MATT | MATERIAL | DISK COPPER ALLOY |
| MATT | MATERIAL | SEAT STEEL COMP 304 |
| MATT | MATERIAL | STEM STEEL COMP 304 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY ASSN STD SINGLE MATERIAL RESPONSE AST-B61 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | DISK ASSN STD SINGLE MATERIAL RESPONSE AST-B21 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SEAT ASSN STD SINGLE MATERIAL RESPONSE AST-A276 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | STEM ASSN STD SINGLE MATERIAL RESPONSE AST-A276 |
| MEDA | MEDIA FOR WHICH DESIGNED | SINGLE RESPONSE AIR |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| D44UU-07H-1/2-3/4 | 5P967 | DANTE VALVE COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-03 | [SPE7M226V4513](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820016300230) | VALVE, SAFETY RELIEF | TRIMAN INDUSTRIES INC | $18,039.24 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820016300230&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820016300230
- 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/4820-01-630-0230/
JSON: https://nsnexplorer.com/api/nsn/4820-01-630-0230.json