The Meter,fluid Flow Indicating,diff, cataloged under National Stock Number 6680-01-515-9066, 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 Aqua-Chem, Inc. Dba Aqua-Chem Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Meter,fluid Flow Indicating,diff |
| FSC / FSG | 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments (FSG 66) |
| Manufacturers | Aqua-Chem, Inc. Dba Aqua-Chem Inc (CAGE 0EXU3) |
| Parameter | Value |
|---|---|
| NSN | 6680-01-515-9066 |
| Primary Part Number | 817-10314-000 |
| Item Name | Meter,fluid Flow Indicating,diff |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 817-10314-000 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 799-D-13185 ITEM 17 | 5/9 Secondary reference Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| RCM5107 | 5/9 Secondary reference Kobold Instruments Inc |
| 799-D-13185 | D/9 Drawing number reference only Aqua-Chem, Inc. Dba Aqua-Chem Inc |
NSN 6680-01-515-9066 is a Meter,fluid Flow Indicating,diff, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-515-9066 has 1 manufacturer part number on file: 817-10314-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4920-01-515-9098, 6680-01-515-9103. Verify interchangeability with system specifications before substitution.
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.