The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-012-5872, 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. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-012-5872 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Status | ACTIVE |
| Furnished Data | LIQUID LEVEL |
| Width Across Flats | 1.371 INCHES MINIMUM AND 1.378 INCHES MAXIMUM IN |
| Data Furnishing Method | CLEAR WINDOW |
| End Connection Type | UNABLE TO DECODE |
| Style Designator | BULLS EYE |
| Features Provided | REFLECTOR |
| Thread Direction | UNABLE TO DECODE |
| Nominal Thread Size | UNABLE TO DECODE |
| Maximum Temp Rating | 200.0 FAHRENHEIT DEGF |
| Media for Which Designed | OIL |
| Thread Class | UNABLE TO DECODE |
| Material | ALUMINUM ALLOY |
| Thread Series Designator | UNABLE TO DECODE |
| Sight Diameter | 0.750 INCHES MINIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| S54L | 3/2 Design control — primary reference U.S. Government activity |
| 25166 | 7/2 Vendor item drawing reference Williams International Co., L.l.c. |
NSN 6680-01-012-5872 is a Indicator,sight,liquid, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 6145-01-412-4855, 5310-01-472-2999, 5331-01-687-5804. Verify interchangeability with system specifications before substitution.
Key specifications for 6680-01-012-5872: Overall Height: 0.870 INCHES NOMINAL IN; Furnished Data: LIQUID LEVEL; Width Across Flats: 1.371 INCHES MINIMUM AND 1.378 INCHES MAXIMUM IN; Data Furnishing Method: CLEAR WINDOW. 14 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.