The Valve,butterfly, cataloged under National Stock Number 4820-01-620-1615, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bae Systems Australia Pty Ltd Div Landing Craft Heavy - in Service Support. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-620-1615 |
| Primary Part Number | SML001909 |
| Item Name | Valve,butterfly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bae Systems Australia Pty Ltd Div Landing Craft Heavy - in Service Support |
| Status | ACTIVE |
| Operating Pressure | 1600.0 KILOPASCALS (KPA) MAXIMUM SINGLE RESPONSE |
| Maximum Operating Temp | 120.0 CELSIUS SINGLE RESPONSE DEGC |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Material | IRON CAST BODY |
| Material | STEEL COMP 316 FLOW CONTROL DEVICE |
| Material | RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM SEAT |
| 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 |
|---|---|
| SML001909 | Bae Systems Australia Pty Ltd Div Landing Craft Heavy - in Service Support (AUS) |
| Reference | Meaning |
|---|---|
| F611-DEE2 | 3/9 Design control — primary reference Tyco International /us/ Inc |
NSN 4820-01-620-1615 is a Valve,butterfly, manufactured by Bae Systems Australia Pty Ltd Div Landing Craft Heavy - in Service Support, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-620-1615 has 1 manufacturer part number on file: SML001909 (Bae Systems Australia Pty Ltd Div Landing Craft Heavy - in Service Support).
Key specifications for SML001909: Operating Pressure: 1600.0 KILOPASCALS (KPA) MAXIMUM SINGLE RESPONSE; Maximum Operating Temp: 120.0 CELSIUS SINGLE RESPONSE DEGC; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING; Material: IRON CAST BODY. 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.