The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-169-3743, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Aventics Corp Div Aventics Corporation. Government technical data includes 16 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-169-3743 |
| Primary Part Number | R431003603 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aventics Corp Div Aventics Corporation |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Renewable Seat Ring Type | PRESSED-IN |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Style Designator | PLAIN |
| Temp Rating | 150.0 FAHRENHEIT NOMINAL DEGF |
| End Connection Quantity | 2 |
| Valve Loading Method | SPRING |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Material | RUBBER SEAT |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| R431003603 | Aventics Corp Div Aventics Corporation (USA) |
| Reference | Meaning |
|---|---|
| R431003603 | 5/9 Secondary reference Bosch Rexroth Corporation Div Bosch Rexroth |
| P55109S | 3/9 Design control — primary reference Bosch Rexroth Corporation Div Bosch Rexroth |
| P-055109-00000 | 5/9 Secondary reference Aventics Corp Div Aventics Corporation |
| P-055109-00000 | 5/9 Secondary reference Bosch Rexroth Corporation Div Bosch Rexroth |
| P55109 | 5/9 Secondary reference Aventics Corp Div Aventics Corporation |
| P55109 | 5/9 Secondary reference Bosch Rexroth Corporation Div Bosch Rexroth |
NSN 4820-01-169-3743 is a Valve,regulating,fluid Pressure, manufactured by Aventics Corp Div Aventics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-169-3743 has 1 manufacturer part number on file: R431003603 (Aventics Corp Div Aventics Corporation).
Key specifications for R431003603: Flow Control Device: DIAPHRAGM; Renewable Seat Ring Type: PRESSED-IN; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 16 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.