The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-697-1691, 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 Ldi Industries, Inc. Dba Ldi Industries Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-697-1691 |
| Primary Part Number | G615-05-A-3 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Ldi Industries, Inc. Dba Ldi Industries Inc |
| Status | ACTIVE |
| Furnished Data | LIQUID LEVEL |
| Width Across Flats | 0.90 INCHES NOMINAL IN |
| Thread Tolerance Class | UNABLE TO DECODE |
| Data Furnishing Method | CLEAR WINDOW AND THERMOMETER |
| End Connection Type | UNABLE TO DECODE |
| Style Designator | DOUBLE-MOUNT, SHIELDED, FRONT OPENING |
| Distance Between Mounting Facility Centers | 5.00 INCHES NOMINAL IN |
| Thread Direction | UNABLE TO DECODE |
| Nominal Thread Size | UNABLE TO DECODE |
| Maximum Temp Rating | 150.0 CELSIUS DEGC |
| Media for Which Designed | HYDRAULIC FLUID AND OIL |
| Thread Class | UNABLE TO DECODE |
| Maximum Working Pressure | 290.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Thread Quantity Per Inch | UNABLE TO DECODE |
| Material | ALUMINUM ALLOY |
| Thread Series Designator | UNABLE TO DECODE |
| Sight Height | 3.50 INCHES NOMINAL 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 |
|---|---|
| G615-05-A-3 PRIMARY | Ldi Industries, Inc. Dba Ldi Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 102167-C4-I405 | 7/2 Vendor item drawing reference Testek Llc Dba Testek Solutions |
NSN 6680-01-697-1691 is a Indicator,sight,liquid, manufactured by Ldi Industries, Inc. Dba Ldi Industries Inc, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-697-1691 has 1 manufacturer part number on file: G615-05-A-3 (Ldi Industries, Inc. Dba Ldi Industries Inc).
Key specifications for G615-05-A-3: Overall Height: 6.62 INCHES NOMINAL IN; Furnished Data: LIQUID LEVEL; Width Across Flats: 0.90 INCHES NOMINAL IN; Thread Tolerance Class: UNABLE TO DECODE. 17 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.