The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-571-3149, 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 Liquip International Pty Ltd. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6680-01-571-3149 |
| Primary Part Number | B3540-10600VA1W |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Liquip International Pty Ltd |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| B3540-10600VA1W | Liquip International Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| B3100-2-6S | 3/2 Design control — primary reference U.S. Government activity |
NSN 6680-01-571-3149 is a Indicator,sight,liquid, manufactured by Liquip International Pty Ltd, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-571-3149 has 1 manufacturer part number on file: B3540-10600VA1W (Liquip International Pty Ltd).
Key specifications for B3540-10600VA1W: Special Features: PRESSURE: 150 PSI MAX; TEMP: 225 DEG F MAX; SIGHT: GAGES GLASS-CLEAR; SEALS: BUNA-N; STUDS: STEEL, PLATED 1/2-20 THREAD DEGF; Part Name Assigned by Controlling Agency: LEVEL GAGE; Material: ALUMINUM ALLOY. 1 specification is 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.