The Salinity Sensor, cataloged under National Stock Number 6680-01-252-1928, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Marine Electric Systems Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-252-1928 |
| Primary Part Number | 500994 |
| Item Name | Salinity Sensor |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Marine Electric Systems Inc |
| Status | ACTIVE |
| General Characteristics Item Description | WORKING PRESSURE: 30IN HG T0 150 PSI AT 250 DEG F MAX. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 500994 | Marine Electric Systems Inc (USA) |
| IC/SB-2 | Marine Electric Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 045-10754472 | 5/9 Secondary reference Rosemount Analytical Inc |
| 807-10754414 | 3/9 Design control — primary reference Rosemount Analytical Inc |
NSN 6680-01-252-1928 is a Salinity Sensor, manufactured by Marine Electric Systems Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-252-1928 has 2 manufacturer part numbers on file: 500994 (Marine Electric Systems Inc), IC/SB-2 (Marine Electric Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 6630-01-526-0018. Verify interchangeability with system specifications before substitution.
Key specifications for 500994: General Characteristics Item Description: WORKING PRESSURE: 30IN HG T0 150 PSI AT 250 DEG F MAX. IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.