The Valve,safety Relief, cataloged under National Stock Number 4820-00-728-6504, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pneudraulics, Inc.. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-728-6504 |
| Primary Part Number | 1580 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Pneudraulics, Inc. |
| Status | ACTIVE |
| Thread Quantity Per Inch | 18 FIRST END |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Valve Operation Method | AUTOMATIC |
| Flow Control Device | DISK |
| Thread Series Designator | UN SECOND END |
| Adjustable Pressure Range | +1400.0 TO 2300.0 POUNDS PER SQUARE INCH LBS |
| Thread Direction | RIGHT-HAND SECOND END |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Thread Series Designator | UNF FIRST END |
| Thread Class | 3A SECOND END A |
| Disk Loading Method | SPRING |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Thread Class | 3B FIRST END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Valve Discharge Flow Rate | 7.0 GALLONS PER MINUTE |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Thread Quantity Per Inch | 16 SECOND END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-728-6504 is a Valve,safety Relief, manufactured by Pneudraulics, Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-728-6504 has 2 cross-referenced part numbers: 1580 (Pneudraulics, Inc.), 1580-1 (Pneudraulics, Inc.).
There are 12 known substitutes for 4820-00-728-6504: 5365-00-054-4594, 5133-00-062-5290, 5120-00-144-2087 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1580: Thread Quantity Per Inch: 18 FIRST END; Features Provided: PRESSURE TIGHT OUTLET SIDE; Valve Operation Method: AUTOMATIC; Flow Control Device: DISK. 20 total characteristics are documented in the Federal Logistics Information System.