The Valve,safety Relief, cataloged under National Stock Number 4820-01-040-8741, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-040-8741 |
| Primary Part Number | 590413 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Valve Operation Method | AUTOMATIC |
| Connection Style | GASKET SEAL(BOSS) ALL ENDS |
| Bonnet Attachment Method | BOLTED |
| Media for Which Designed | ETHYLENE GLYCOL FIRST RESPONSE |
| Bonnet Type | INSIDE SPRING |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Valve Discharge Flow Rate | 45.0 GALLONS PER MINUTE |
| Maximum Operating Temp | 150.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flow Control Device | PISTON |
| Disk Loading Method | SPRING |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | CROSS |
| Thread Series Designator | UNF ALL ENDS |
| Media for Which Designed | OIL, HYDRAULIC SECOND RESPONSE |
| Material | STEEL OVERALL |
| Adjustable Pressure Range | +1500.0 TO 3000.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2B ALL ENDS |
| Nominal Thread Size | 0.875 INCHES ALL ENDS IN |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-040-8741 is a Valve,safety Relief, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-040-8741 has 4 cross-referenced part numbers: 590413 (Eaton Aerospace, Llc Dba Jackson South), 345088 (Eaton Aerospace, Llc Dba Jackson South), 8071 (Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel), CS03F40 (Eaton Aerospace, Llc Dba Jackson South).
There are 11 known substitutes for 4820-01-040-8741: 3110-00-100-4186, 3030-00-528-4638, 3110-00-606-1840 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 590413: Valve Operation Method: AUTOMATIC; Connection Style: GASKET SEAL(BOSS) ALL ENDS; Bonnet Attachment Method: BOLTED; Media for Which Designed: ETHYLENE GLYCOL FIRST RESPONSE. 19 total characteristics are documented in the Federal Logistics Information System.