The Glass,liquid Sight Indicator,fla, cataloged under National Stock Number 6680-01-477-2299, 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 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6680-01-477-2299 |
| Primary Part Number | 16251-222 |
| Item Name | Glass,liquid Sight Indicator,fla |
| 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 |
| Design Type | PLAIN |
| Gage Rated Pressure | 250.0 POUNDS PER SQUARE INCH GAGE LBS |
| Mica Shield | NOT PROVIDED |
| Gasket | NOT INCLUDED |
| 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 |
|---|---|
| 16251-222 PRIMARY | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA) |
| SFI-15212 ITEM 3 | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA) |
| Reference | Meaning |
|---|---|
| SFI-15212 ITEM 3 | 3/9 Design control — primary reference Cleveland Gear Company, Inc. Dba Cleveland Gear Co |
| 16251-222 | 5/9 Secondary reference Cleveland Gear Company, Inc. Dba Cleveland Gear Co |
NSN 6680-01-477-2299 is a Glass,liquid Sight Indicator,fla, 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 6680-01-477-2299 has 2 manufacturer part numbers on file: 16251-222 (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C), SFI-15212 ITEM 3 (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C).
Key specifications for 16251-222: Design Type: PLAIN; Gage Rated Pressure: 250.0 POUNDS PER SQUARE INCH GAGE LBS; Mica Shield: NOT PROVIDED; Gasket: NOT INCLUDED. 4 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.