The Valve,flow Control, cataloged under National Stock Number 4820-01-540-1925, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Deere & Company Dba Deere John Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-540-1925 |
| Primary Part Number | AT329753 |
| Item Name | Valve,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Deere & Company Dba Deere John Co |
| Status | ACTIVE |
| Valve Operation Method | HYDRAULIC AND 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 |
|---|---|
| AT329753 PRIMARY | Deere & Company Dba Deere John Co (USA) |
| AT187021 | Rdo Equipment Rdo Equipment Pty Ltd (AUS) |
| AT329753 | Rdo Equipment Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| AT187021 | 5/9 Secondary reference Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery |
| AT329753 | 5/9 Secondary reference Rdo Equipment Pty Ltd |
| AT187021 | 5/9 Secondary reference Deere & Co |
NSN 4820-01-540-1925 is a Valve,flow Control, manufactured by Deere & Company Dba Deere John Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-540-1925 has 3 manufacturer part numbers on file: AT329753 (Deere & Company Dba Deere John Co), AT187021 (Rdo Equipment Rdo Equipment Pty Ltd), AT329753 (Rdo Equipment Pty Ltd).
Key specifications for AT329753: Special Features: SERVICE BRAKE VALVE FOR SERVICE BRAKE PEDAL AND VALVE SECTION; Part Name Assigned by Controlling Agency: MANUAL HYDRAULIC VALVE; End Item Identification: MODEL 672D MOTOR GRADER; BRAKES GROUP; Valve Operation Method: HYDRAULIC AND MANUAL. 1 specification is 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.