The Valve,butterfly, cataloged under National Stock Number 4820-01-406-4512, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-406-4512 |
| Primary Part Number | 2498-14-17 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 14.000 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING BODY |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| YMC 74203 | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| 2498-14-17 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| YCM74203 PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| YMC 74203 | 5/9 Secondary reference Circor Intl Inc |
| 2498-14-17 | 3/9 Design control — primary reference Circor Intl Inc |
NSN 4820-01-406-4512 is a Valve,butterfly, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-406-4512 has 3 manufacturer part numbers on file: YMC 74203 (Leslie Controls, Inc. Dba Leslie Controls Inc), 2498-14-17 (Leslie Controls, Inc. Dba Leslie Controls Inc), YCM74203 (Leslie Controls, Inc. Dba Leslie Controls Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-407-8177. Verify interchangeability with system specifications before substitution.
Key specifications for 2498-14-17: Nominal Pipe Size Accommodated: 14.000 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Material: STEEL CORROSION RESISTING BODY. 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.