The Valve,safety Relief, cataloged under National Stock Number 4820-00-529-4180, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-529-4180 |
| Primary Part Number | A50157 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Hydro-Aire Aerospace Corp |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY BODY |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Material | STEEL CORROSION RESISTING STEM |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Connection Style | GASKET SEAL(BOSS) ALL ENDS |
| Thread Class | 3B ALL ENDS |
| Bonnet Attachment Method | INTEGRAL |
| Style Designator | STRAIGHT THRU |
| Bonnet Type | INSIDE SCREW |
| Flow Control Device | DISK |
| Disk Loading Method | SPRING |
| Adjustable Pressure Range | +1000.0 TO 2300.0 POUNDS PER SQUARE INCH LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Valve Operation Method | AUTOMATIC |
| Thread Series Designator | UNF ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-529-4180 is a Valve,safety Relief, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-529-4180 has 3 cross-referenced part numbers: A50157 (Airborne Technologies, Inc.), 10-2911 (The Boeing Company Div Defense), A50157 (Hydro-Aire Aerospace Corp).
There are 8 known substitutes for 4820-00-529-4180: 5310-00-152-2369, 5905-00-485-4554, 2915-00-798-8258 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for A50157: Material: ALUMINUM ALLOY BODY; Material: STEEL CORROSION RESISTING SEAT; Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE; Connection Type: THREADED INTERNAL BOSS ALL ENDS. 19 total characteristics are documented in the Federal Logistics Information System.