The Indicator,liquid Quantity, cataloged under National Stock Number 6680-01-463-8658, 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 Advanced Control Technology Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Indicator,liquid Quantity |
| FSC / FSG | 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments (FSG 66) |
| Manufacturers | Advanced Control Technology Inc. (CAGE 03DC1) |
| Parameter | Value |
|---|---|
| NSN | 6680-01-463-8658 |
| Primary Part Number | ACT-4699 |
| Item Name | Indicator,liquid Quantity |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Advanced Control Technology Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| ACT-4699 PRIMARY | Advanced Control Technology Inc. (USA) |
| Reference | Meaning |
|---|---|
| 500K2230 | 5/9 Secondary reference Drs Environmental Systems Inc |
| 500K2230 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 500K220 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
| 500K2230 | 5/9 Secondary reference U.S. Government activity |
| 738580-1 | 5/9 Secondary reference Drs Sustainment Systems, Inc. |
NSN 6680-01-463-8658 is a Indicator,liquid Quantity, manufactured by Advanced Control Technology Inc., classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-463-8658 has 1 manufacturer part number on file: ACT-4699 (Advanced Control Technology Inc.).
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.