The Valve,rotary,selector, cataloged under National Stock Number 4820-01-436-7401, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Appleton Marine Inc. Government technical data includes 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-436-7401 |
| Primary Part Number | YMD-6895-R |
| Item Name | Valve,rotary,selector |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| Flow Control Device | PORTED ROTOR |
| Operating Pressure and Type | 3500.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS |
| Connection Type | THREADED EXTERNAL BOSS |
| Flow Type | THREE-WAY |
| Nominal Thread Size | 0.875 INCHES IN |
| Body Material | STEEL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| YMD-6895-R | Appleton Marine Inc (USA) |
| Reference | Meaning |
|---|---|
| 15CDM3-LD | 5/9 Secondary reference U.S. Government activity |
| DM103LD | 3/2 Design control — primary reference U.S. Government activity |
| 10483399 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4820-01-436-7401 is a Valve,rotary,selector, manufactured by Appleton Marine Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-436-7401 has 1 manufacturer part number on file: YMD-6895-R (Appleton Marine Inc).
Key specifications for YMD-6895-R: Flow Control Device: PORTED ROTOR; Operating Pressure and Type: 3500.0 POUNDS PER SQUARE INCH (PSI) HYDROCARBON FUEL OR OIL MAXIMUM REQUIRED LBS; Connection Type: THREADED EXTERNAL BOSS; Flow Type: THREE-WAY. 8 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.