The Seat,valve, cataloged under National Stock Number 4820-00-231-0049, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is David Brown Hydraulics Inc Dba Hydreco. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-231-0049 |
| Primary Part Number | 414X205 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | David Brown Hydraulics Inc Dba Hydreco |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.561 INCHES NOMINAL IN |
| Flange Diameter | 1.156 INCHES NOMINAL IN |
| Body Outside Diameter | 1.000 INCHES NOMINAL IN |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM BODY |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM FACE |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 0.465 INCHES NOMINAL IN |
| Under Flange Height | 0.625 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Seat Angle in Deg | 45.000 NOMINAL |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| 414X205 PRIMARY | David Brown Hydraulics Inc Dba Hydreco (USA) |
| Reference | Meaning |
|---|---|
| U46319 | 5/9 Secondary reference Deere & Co |
| U46319 | 5/9 Secondary reference Deere & Company Dba Deere John Co |
NSN 4820-00-231-0049 is a Seat,valve, manufactured by David Brown Hydraulics Inc Dba Hydreco, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-231-0049 has 1 manufacturer part number on file: 414X205 (David Brown Hydraulics Inc Dba Hydreco).
Key specifications for 414X205: Flange Seat to Disk End Height: 0.561 INCHES NOMINAL IN; Flange Diameter: 1.156 INCHES NOMINAL IN; Body Outside Diameter: 1.000 INCHES NOMINAL IN; Hardness Rating: 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM BODY. 11 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.