# NSN 4820-01-397-1755: Cock, Poppet Drain

NSN 4820-01-397-1755 (also written 4820013971755; NIIN 01-397-1755) is a cock, poppet drain in Federal Supply Class 4820, Valves, Nonpowered. 4 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4820-01-397-1755 (4820013971755)
- NIIN: 01-397-1755 (013971755)
- Item name: COCK,POPPET DRAIN
- 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 T: handled under qualified products list procedures. (observed 2026-11-04)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | FIRST END RIGHT-HAND |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| AGAV | END ITEM IDENTIFICATION | E-3A |
| AHNC | CONNECTION STYLE | — |
| AQLR | VALVE OPERATION METHOD | MANUAL |
| AWLS | CONNECTION TYPE | FIRST END THREADED EXTERNAL BOSS |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 0.875 |
| FEAT | SPECIAL FEATURES | USED AS SELF-LOCKING FUEL DRAIN VALVE ASSEMBLY, CONSISTS OF 1 POPPET VALVE,1 VALVE POPPET, 1 O-RING, 1 SPRING, 1 VALVE BODY, 1 SPRING PIN |
| MATT | MATERIAL | OVERALL ALUMINUM ALLOY |
| SFTT | SURFACE TREATMENT | ANODIZE |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | FIRST END UNIFIED NATIONAL JOINT FINE (UNJF) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 95C5 | 91511 | AUTO-VALVE, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-V-25023 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS29571-5 | 91511 | AUTO-VALVE, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MS29571-5 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-18 | [SPE7M126D61HV/SPE7M526F2185](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820013971755) | COCK, POPPET DRAIN | AUTO-VALVE, INC | $72,540.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4820013971755&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4820013971755
- 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/4820-01-397-1755/
JSON: https://nsnexplorer.com/api/nsn/4820-01-397-1755.json