The Valve,butterfly, cataloged under National Stock Number 4820-01-561-0790, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Renk-Maag Gmbh. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-561-0790 |
| Primary Part Number | 829642 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Renk-Maag Gmbh |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDLE AND 1 LOCKING DEVICE |
| Style Designator | STRAIGHT THRU |
| Valve Size | 4.000 INCHES IN |
| Material | ALUMINUM BODY |
| 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 |
|---|---|
| 829642 PRIMARY | Renk-Maag Gmbh (CHE) |
| Reference | Meaning |
|---|---|
| 829642 | 5/9 Secondary reference Maag Gear Ag |
| 50080877 | 5/9 Secondary reference Maag Gear Ag |
NSN 4820-01-561-0790 is a Valve,butterfly, manufactured by Renk-Maag Gmbh, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-561-0790 has 1 manufacturer part number on file: 829642 (Renk-Maag Gmbh).
Key specifications for 829642: Furnished Items and Quantity: 1 HANDLE AND 1 LOCKING DEVICE; Style Designator: STRAIGHT THRU; Valve Size: 4.000 INCHES IN; End Item Identification: NEW CONSTRUCTION LCS1. 5 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.