The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-211-4659, 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 Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-211-4659 |
| Primary Part Number | 711557-2 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd. |
| Status | ACTIVE |
| Furnished Data | LIQUID LEVEL |
| Nominal Pipe Size for Which Designed | UNABLE TO DECODE |
| Data Furnishing Method | CLEAR WINDOW |
| End Connection Type | UNABLE TO DECODE |
| Style Designator | GAGE VALVE |
| Distance Between Mounting Facility Centers | 15.250 INCHES NOMINAL IN |
| Media for Which Designed | ANY ACCEPTABLE |
| Material | COPPER ALLOY |
| Guard Rod Quantity | 4 |
| 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 |
|---|---|
| 711557-2 PRIMARY | Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd. (CAN) |
NSN 6680-01-211-4659 is a Indicator,sight,liquid, manufactured by Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd., classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-211-4659 has 1 manufacturer part number on file: 711557-2 (Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd.).
Key specifications for 711557-2: Furnished Data: LIQUID LEVEL; Nominal Pipe Size for Which Designed: UNABLE TO DECODE; Data Furnishing Method: CLEAR WINDOW; End Connection Type: UNABLE TO DECODE. 9 specifications are 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.