The Valve,safety Relief, cataloged under National Stock Number 4820-01-134-3546, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Viking Pump, Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-134-3546 |
| Primary Part Number | 3-795-240-000-06 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Viking Pump, Inc |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Flange Shape | OVAL WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Nominal Length | 3.000 INCHES ALL ENDS IN |
| Bolt Circle Nominal Diameter | 2.375 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS NOTE:TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Bolt Hole Nominal Diameter | 0.350 INCHES ALL ENDS IN |
| Valve Size | 0.750 INCHES IN |
| Adjustable Pressure Range | +30.0 TO 75.0 POUNDS PER SQUARE INCH LBS |
| Bolt Hole Quantity | 4 ALL ENDS |
| Nominal Width | 1.500 INCHES ALL ENDS IN |
| Face to Face Distance | 1.750 INCHES IN |
| Material | IRON OVERALL |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 0.390 INCHES ALL ENDS 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 |
|---|---|
| 3-795-240-000-06 PRIMARY | Viking Pump, Inc (USA) |
| Reference | Meaning |
|---|---|
| 3-795-200-000-06 | 5/9 Secondary reference Viking Pump, Inc |
| 3-795-200-000 | 5/9 Secondary reference Viking Pump, Inc |
NSN 4820-01-134-3546 is a Valve,safety Relief, manufactured by Viking Pump, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-134-3546 has 1 manufacturer part number on file: 3-795-240-000-06 (Viking Pump, Inc).
Key specifications for 3-795-240-000-06: Flow Control Device: POPPET; Flange Shape: OVAL WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Nominal Length: 3.000 INCHES ALL ENDS IN. 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.