The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-552-1273, 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 Ernst, John C & Co, Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-552-1273 |
| Primary Part Number | 420-04 NAVY T2 150#ASA 35"CC |
| Item Name | Indicator,sight,liquid |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Ernst, John C & Co, Inc. |
| Status | ACTIVE |
| Data Furnishing Method | CLEAR WINDOW |
| End Connection Type | UNABLE TO DECODE |
| Style Designator | GAGE VALVE |
| Distance Between Mounting Facility Centers | 35.000 INCHES NOMINAL IN |
| Maximum Working Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Sight Diameter | 0.750 INCHES NOMINAL IN |
| Sight Height | 33.000 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 |
|---|---|
| 420-04 NAVY T2 150#ASA 35"CC PRIMARY | Ernst, John C & Co, Inc. (USA) |
| E42006 420-04 35"CC | Ernst, John C & Co, Inc. (USA) |
| 420-04 NAVY T2 150#ASA 35"CC | Clark-Reliance Llc (USA) |
| E42006 420-04 35"CC | Clark-Reliance Llc (USA) |
| Reference | Meaning |
|---|---|
| E42006 | D/9 Drawing number reference only Ernst, John C & Co, Inc. |
NSN 6680-01-552-1273 is a Indicator,sight,liquid, manufactured by Ernst, John C & Co, Inc., classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-552-1273 has 4 manufacturer part numbers on file: 420-04 NAVY T2 150#ASA 35"CC (Ernst, John C & Co, Inc.), E42006 420-04 35"CC (Ernst, John C & Co, Inc.), 420-04 NAVY T2 150#ASA 35"CC (Clark-Reliance Llc), E42006 420-04 35"CC (Clark-Reliance Llc).
3 possible matches (shared part number, not a government interchangeability claim): 6680-01-552-1282, 5340-01-552-8691, 6680-01-659-7265. Verify interchangeability with system specifications before substitution.
Key specifications for 420-04 NAVY T2 150#ASA 35"CC: Data Furnishing Method: CLEAR WINDOW; End Connection Type: UNABLE TO DECODE; Style Designator: GAGE VALVE; Distance Between Mounting Facility Centers: 35.000 INCHES NOMINAL IN. 7 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.