The Valve,safety Relief, cataloged under National Stock Number 4820-01-522-3356, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-522-3356 |
| Primary Part Number | P52-2958 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Nominal Length | 1.840 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU W/BAFFLE |
| Nominal Outside Diameter | 2.240 INCHES ALL ENDS IN |
| Material | RUBBER NATURAL OVERALL |
| 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 |
|---|---|
| P522958 | Donaldson Australasia Pty Ltd (AUS) |
| 36.01.03.030H | Fischer Panda Gmbh (DEU) |
| P52-2958 PRIMARY | Donaldson Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10392030 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4820-01-522-3356 is a Valve,safety Relief, manufactured by Donaldson Company, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-522-3356 has 3 manufacturer part numbers on file: P522958 (Donaldson Australasia Pty Ltd), 36.01.03.030H (Fischer Panda Gmbh), P52-2958 (Donaldson Company, Inc.).
Key specifications for P52-2958: Nominal Length: 1.840 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU W/BAFFLE; Nominal Outside Diameter: 2.240 INCHES ALL ENDS IN; Special Features: SOLID RUBBER. 4 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.