# NSN 4820-01-508-6574: Valve, Check

NSN 4820-01-508-6574 (also written 4820015086574; NIIN 01-508-6574) is a valve, check in Federal Supply Class 4820, Valves, Nonpowered. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4820-01-508-6574 (4820015086574)
- NIIN: 01-508-6574 (015086574)
- Item name: VALVE,CHECK
- 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 H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ADQU | FLOW CONTROL DEVICE | DISK |
| ADSU | DISK LOADING METHOD | WEIGHT |
| AECS | BOLT HOLE QUANTITY | 4 |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 100.0 |
| AGAV | END ITEM IDENTIFICATION | VALVE, SC 2.51 |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| ARKN | FLANGE SHAPE | ALL ENDS ROUND WITH HOLES |
| AWLS | CONNECTION TYPE | ALL ENDS FLANGE |
| AZGM | MOUNTING FACILITY | BRACKET(S) |
| BBJX | MOUNTING POSITION | HORIZONTAL |
| CCFG | VALVE SIZE | INCHES 2.500 |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 275.0 |
| CWCD | NOMINAL OUTSIDE DIAMETER | ALL ENDS INCHES 7.000 |
| CWCF | FACE TO FACE DISTANCE | INCHES 8.500 |
| CWCK | NOMINAL THICKNESS | ALL ENDS INCHES 0.690 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | ALL ENDS INCHES 0.750 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | ALL ENDS INCHES 5.500 |
| CWDF | FLANGE FACE DESIGN | ALL ENDS RAISED STRAIGHT |
| CWDH | RAISED FACE NOMINAL HEIGHT | ALL ENDS INCHES 0.060 |
| CWDL | RAISED FACE NOMINAL DIAMETER | ALL ENDS INCHES 4.130 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | CAST STAINLESS STEEL SWING CHECK VALVE CLASS 150 B,C R,F. |
| FEAT | SPECIAL FEATURES | INGALLS SHIPBUILDING, PROJECT: LPD, REQ.: 714606 TRH, ITEM NO: 51391. |
| MATT | MATERIAL | BODY STEEL UNS J92500 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | BODY ASSN STD SINGLE MATERIAL RESPONSE AST- A-351 CF3 |
| STYL | STYLE DESIGNATOR | — |
| TMQY | FURNISHED ITEMS AND QUANTITY | COVER 1 AND GASKET 1 AND WASHER 1 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| LPD0006 | 79342 | WILLIAM E WILLIAMS VALVE CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-01 | $6,735.00 | 1 | PIONEER INDUSTRIES, LLC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015086574) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-01 | [SPE7MC27V0017](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015086574) | VALVE, CHECK | PIONEER INDUSTRIES, LLC | $6,735.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820015086574&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820015086574
- 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/4820-01-508-6574/
JSON: https://nsnexplorer.com/api/nsn/4820-01-508-6574.json