The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-353-4902, 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 6 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6680-01-353-4902 |
| Primary Part Number | CS2009-156600 |
| 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 | 2.750 INCHES NOMINAL IN |
| Data Furnishing Method | CLEAR WINDOW |
| Style Designator | BULLS EYE, HI-TEMP/HIGH PRESSURE |
| Material | COPPER ALLOY |
| Sight Diameter | 1.880 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 |
|---|---|
| CS2009-156600 PRIMARY | Ldi Industries, Inc. Dba Ldi Industries Inc (USA) |
| 061000082 ITEM 50 | Waukesha Bearings Corporation (USA) |
| A000991031000 | Waukesha Bearings Corporation (USA) |
| Reference | Meaning |
|---|---|
| 000991031-000 | 5/9 Secondary reference Waukesha Bearings Corporation |
NSN 6680-01-353-4902 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 6680-01-353-4902 has 3 manufacturer part numbers on file: CS2009-156600 (Ldi Industries, Inc. Dba Ldi Industries Inc), 061000082 ITEM 50 (Waukesha Bearings Corporation), A000991031000 (Waukesha Bearings Corporation).
Key specifications for CS2009-156600: Overall Height: 1.930 INCHES NOMINAL IN; Furnished Data: LIQUID LEVEL; Width Across Flats: 2.750 INCHES NOMINAL IN; Data Furnishing Method: CLEAR WINDOW. 6 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.