# NSN 6680-01-664-3402: Indicator, Sight, Liquid

NSN 6680-01-664-3402 (also written 6680016643402; NIIN 01-664-3402) is an indicator, sight, liquid in Federal Supply Class 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 6680-01-664-3402 (6680016643402)
- NIIN: 01-664-3402 (016643402)
- Item name: INDICATOR,SIGHT,LIQUID
- Federal Supply Class: [FSC 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments](https://nsnexplorer.com/fsc/6680/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- 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 |
| --- | --- | --- |
| BPHD | MAXIMUM WORKING PRESSURE | POUNDS PER SQUARE INCH (PSI) 125.0 |
| AAJF | THREAD DIRECTION | BOTH ENDS RIGHT-HAND |
| CMLP | THREAD QUANTITY PER INCH | 11.5 |
| CSQG | FURNISHED DATA | LIQUID FLOW |
| CTCY | DATA FURNISHING METHOD | CLEAR WINDOW |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | INDICATOR, LIQUID, SIGHT |
| FEAT | SPECIAL FEATURES | SHALL BE ABLE TO WITHSTAND A HYDROSTATIC TEST PRESSURE OF 150 PSI FOR FIVE MINUTES WITH NO LEAKAGE OR DEFORMATION |
| MATT | MATERIAL | STEEL CORROSION RESISTING |
| MEDA | MEDIA FOR WHICH DESIGNED | ETHYLENE GLYCOL/WATER MIXTURE |
| STYL | STYLE DESIGNATOR | — |
| THSD | THREAD SERIES DESIGNATOR | BOTH ENDS NPT |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 3.71 |
| ABMK | OVERALL WIDTH | INCHES MAXIMUM 4.50 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 318534 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 318534-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION, LAKEHURST | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LI48A-1 | 28193 | HENRY TECHNOLOGIES, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6680016643402&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6680016643402
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/6680-01-664-3402/
JSON: https://nsnexplorer.com/api/nsn/6680-01-664-3402.json