The Valve,safety Relief, cataloged under National Stock Number 4820-00-541-6635, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-541-6635 |
| Primary Part Number | A50037 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Hydro-Aire Aerospace Corp |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Bonnet Type | PACKING RETAINING |
| Material | ALUMINUM ALLOY SEAT |
| Maximum Operating Temp | 200.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Series Designator | UNF ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Opening Pressure Setting | 3250.0 POUNDS PER SQUARE INCH LBS |
| Seat Angle | 12.0 DEGREES ALL ENDS |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Operating Pressure | 3550.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.437 INCHES ALL ENDS IN |
| Connection Style | FLARELESS (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Flow Control Device | POPPET |
| Material | ALUMINUM ALLOY STEM |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Valve Discharge Flow Rate | 2.5 GALLONS PER MINUTE |
| Thread Class | 3A ALL ENDS A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A50037 PRIMARY | Hydro-Aire Aerospace Corp (USA) |
NSN 4820-00-541-6635 is a Valve,safety Relief, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-541-6635 has 1 cross-referenced part number: A50037 (Hydro-Aire Aerospace Corp).
There are 2 known substitutes for 4820-00-541-6635: 3110-00-293-9166, 5340-01-424-1466. Verify interchangeability with system specifications before substitution.
Key specifications for A50037: Material: ALUMINUM ALLOY BODY; Valve Operation Method: AUTOMATIC; Bonnet Type: PACKING RETAINING; Material: ALUMINUM ALLOY SEAT. 20 total characteristics are documented in the Federal Logistics Information System.