# NSN 4820-01-041-1571: Valve, Body Assembly, BY-Pass

NSN 4820-01-041-1571 (also written 4820010411571; NIIN 01-041-1571) is a valve, body assembly, by-pass 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: 4820-01-041-1571 (4820010411571)
- NIIN: 01-041-1571 (010411571)
- Item name: VALVE,BODY ASSEMBLY,BY-PASS
- 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 L: annual buy value is below the screening threshold. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | CAST IRON BODY; 1 FLANGE WITH 2 O-RING SEAL PASSAGES; 1 PLAIN FACE FLANGE,1 THREADED INTERNAL BOSS CONNECTION SIZE 0.875-9 UNC 2B RH; 3 O.410 IN. DIA MOUNTING HOLES THROUGH BODY |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 3P7665 | 11083 | CATERPILLAR INC DIV CATERPILLAR DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-08 | [SPE7LX21D0087/SPE7LX26FB6XZ](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820010411571) | VALVE, BODY ASSEMBLY, BY-PASS | ATLANTIC DIVING SUPPLY, INC. DBA ADS | $1,754.95 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820010411571&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820010411571
- 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/4820-01-041-1571/
JSON: https://nsnexplorer.com/api/nsn/4820-01-041-1571.json