The Valve Assy,regulating, cataloged under National Stock Number 4820-01-059-3525, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Aerospace Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-059-3525 |
| Primary Part Number | 3833-2-000 |
| Item Name | Valve Assy,regulating |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Circor Aerospace Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 2.56 IN. W; 1.34 IN. MAX H; UNIT HAS CHECK VALVE UPSTREAM RELIEF VALVE DOWNSTREAM; 15 MICROMETER FILTER; HOUSING ALUMINUM ALLOY; SEALS FLUOROSILICONE; OPERATING TEMP M65.0 DEG F TO 226.5 DEG F IN |
| 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 |
|---|---|
| 3833-2-000 | Circor Aerospace Inc (USA) |
| 2955-00C1-3 | Mission Systems Orchard Park Inc (USA) |
| Reference | Meaning |
|---|---|
| 3833-2-000 | 5/9 Secondary reference Acc Partners Inc |
| 583R626H01 | 3/2 Design control — primary reference U.S. Government activity |
| 583R626 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4820-01-059-3525 is a Valve Assy,regulating, manufactured by Circor Aerospace Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-059-3525 has 2 manufacturer part numbers on file: 3833-2-000 (Circor Aerospace Inc), 2955-00C1-3 (Mission Systems Orchard Park Inc).
Key specifications for 3833-2-000: General Characteristics Item Description: 2.56 IN. W; 1.34 IN. MAX H; UNIT HAS CHECK VALVE UPSTREAM RELIEF VALVE DOWNSTREAM; 15 MICROMETER FILTER; HOUSING ALUMINUM ALLOY; SEALS FLUOROSILICONE; OPERATING TEMP M65.0 DEG F TO 226.5 DEG F IN. 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.