The Valve,butterfly, cataloged under National Stock Number 4820-01-352-1757, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-352-1757 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| 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 |
|---|---|
| 25040000-1-1 | 5/2 Secondary reference U.S. Government activity |
| 2504000 | 5/9 Secondary reference Tri-Tec Manufacturing, Llc |
| 301256 ASSY 910010-4 | 5/2 Secondary reference U.S. Government activity |
| 910010-04 | D/9 Drawing number reference only U.S. Government activity |
| 300184 | 5/9 Secondary reference Tri-Tec Manufacturing, Llc |
| 910010-4 | 5/2 Secondary reference U.S. Government activity |
| 25040000-1-1 | 3/9 Design control — primary reference Tri-Tec Manufacturing, Llc |
| 300184-R4 | 5/9 Secondary reference Tri-Tec Manufacturing, Llc |
NSN 4820-01-352-1757 is a Valve,butterfly, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-646-6901. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-352-1757: Special Features: FOR TRI-TEC CORP. 0 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.