The Disk,valve, cataloged under National Stock Number 4820-01-196-1546, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-196-1546 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Taper Minor Diameter | 1.250 INCHES NOMINAL IN |
| Style Designator | SOLID WEDGE |
| Taper Major Diameter | 1.750 INCHES NOMINAL IN |
| Taper Length | 3.062 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 6 |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| T0-45752 | 5/9 Secondary reference Nibco Inc |
| T046909FC | 3/9 Design control — primary reference Nibco Inc |
NSN 4820-01-196-1546 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-283-3249. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-196-1546: Overall Height: 5.000 INCHES NOMINAL IN; Taper Minor Diameter: 1.250 INCHES NOMINAL IN; Style Designator: SOLID WEDGE; Taper Major Diameter: 1.750 INCHES NOMINAL IN. 6 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.