The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-552-1282, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 6680-01-552-1282 |
| Primary Part Number | 420-04 NAVY T2 150#ASA 24"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 | 24.000 INCHES NOMINAL IN |
| Maximum Working Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Sight Diameter | 0.750 INCHES NOMINAL IN |
| Sight Height | 22.000 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 24"CC | Ernst, John C & Co, Inc. (USA) |
| Reference | Meaning |
|---|---|
| E42006 420-04 24"CC | 5/9 Secondary reference Ernst, John C & Co, Inc. |
| E42006 | D/9 Drawing number reference only Ernst, John C & Co, Inc. |
| TMS-5637 | 3/2 Design control — primary reference U.S. Government activity |
NSN 6680-01-552-1282 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 6680-01-552-1282 has 1 manufacturer part number on file: 420-04 NAVY T2 150#ASA 24"CC (Ernst, John C & Co, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-552-8691, 6680-01-659-7265. Verify interchangeability with system specifications before substitution.
Key specifications for 420-04 NAVY T2 150#ASA 24"CC: Data Furnishing Method: CLEAR WINDOW; End Connection Type: UNABLE TO DECODE; Style Designator: GAGE VALVE; Distance Between Mounting Facility Centers: 24.000 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.