# NSN 6630-01-490-7581: Test Set, Water Turbidity Meter

NSN 6630-01-490-7581 (also written 6630014907581; NIIN 01-490-7581) is a test set, water turbidity meter in Federal Supply Class 6630, Chemical Analysis Instruments. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 6630-01-490-7581 (6630014907581)
- NIIN: 01-490-7581 (014907581)
- Item name: TEST SET,WATER TURBIDITY METER
- Federal Supply Class: [FSC 6630 Chemical Analysis Instruments](https://nsnexplorer.com/fsc/6630/)
- Federal Supply Group: [FSG 66](https://nsnexplorer.com/group/66/)
- Acquisition method suffix code: AMSC Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | STATE OF THE ART PORTABLE TURBIDITY METER; COMPLIES WITH ISO 7027; PROVIDES LAB GRADE ACCURACY EVEN IN THE FIELD; WITH 4 KEYS AND WEIGHS 350 GRAMS; MEASURES TURBIDITY FROM 0 TO 1000 FTU (NTU);EQUIPPED WITH INFARED LED AS SOURCE OF LIGHT; GOOD LABORATORY PRACTICE FEATURE CIRCUITRY AUTOMATICALLY STORES AND RETRIEVES THE LAST CALIBRATION DATA; AT TOUCH OF A KEY, LAST CALIBRATION DATA WITH TIME AND DATE ARE DISPLAYED ALLOWING USER TO MAINTAIN AN ACCURATE CALIBRATION SCHEDULE; AUTO SHUT OFF TURNS METER OFF AFTER 5 MINUTES OF NON USE TO SAVE BATTERIES; SUPPLIED WITH MEASUREMENT CUVET AND CAP, FOUR 1.5 V AA BATTERIES AND INSTRUCTION MANUAL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| HI 93703 | 06EF2 | HANNA INSTRUMENTS, INC. DIV HANNA INSTRUMENTS USA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HI93703C | 77AV5 | HANNA INSTRUMENTS, 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=6630014907581&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6630014907581
- 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/6630-01-490-7581/
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