The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-477-2278, 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 The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6680-01-477-2278 |
| Primary Part Number | SFI-15212 |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C |
| Status | ACTIVE |
| Furnished Data | LIQUID FLOW |
| Data Furnishing Method | CLEAR WINDOW |
| End Connection Type | UNABLE TO DECODE |
| Style Designator | DOUBLE PORT FLANGED |
| Bolt Hole Diameter | UNABLE TO DECODE |
| Bolt Hole Quantity | UNABLE TO DECODE |
| Bolt Circle Diameter | 3.938 INCHES NOMINAL IN |
| Media for Which Designed | ANY ACCEPTABLE |
| Maximum Working Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Flange Outside Diameter | 5.062 INCHES NOMINAL IN |
| Sight Diameter | 2.000 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 |
|---|---|
| SFI-15212 PRIMARY | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA) |
| Reference | Meaning |
|---|---|
| 88588-940 | 5/2 Secondary reference U.S. Government activity |
| SFI-15212 | 5/9 Secondary reference Cleveland Gear Company, Inc. Dba Cleveland Gear Co |
NSN 6680-01-477-2278 is a Indicator,sight,liquid, manufactured by The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-477-2278 has 1 manufacturer part number on file: SFI-15212 (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C).
Key specifications for SFI-15212: Overall Height: 7.500 INCHES NOMINAL IN; Furnished Data: LIQUID FLOW; Data Furnishing Method: CLEAR WINDOW; End Connection Type: UNABLE TO DECODE. 11 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.