The Valve,check, cataloged under National Stock Number 4820-00-529-3225, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-529-3225 |
| Primary Part Number | 403508 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
| Status | CANCELLED |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | ANODIZE |
| Material | STEEL FLOW CONTROL DEVICE |
| Nondefinitive Spec/std Data | 1500 CLASS AND A STYLE |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Material | ALUMINUM ALLOY BODY |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Flow Control Device | POPPET |
| Mounting Position | HORIZONTAL |
| Thread Class | 3A ALL ENDS A |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Material | ALUMINUM ALLOY SEAT |
| Valve Operation Method | AUTOMATIC |
| Disk Loading Method | SPRING |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 403508 | Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA) |
| 1112-526070 | Parker-Hannifin Corp Fluidpower Group Mobile Hydraulics Div (USA) |
| 1-3146-75 | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA) |
| MIL-V-5524 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 1112-526070 | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| AN6207-5 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
NSN 4820-00-529-3225 is a Valve,check, manufactured by Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-529-3225 has 6 cross-referenced part numbers: 403508 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div), 1112-526070 (Parker-Hannifin Corp Fluidpower Group Mobile Hydraulics Div), 1-3146-75 (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), MIL-V-5524 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1112-526070 (Parker Hannifin Corporation Div Aerospace Group Headquarters) and 1 more.
There is 1 known substitute for 4820-00-529-3225: 5342-00-896-1053. Verify interchangeability with system specifications before substitution.
Key specifications for 403508: Maximum Operating Temp: 160.0 FAHRENHEIT SINGLE RESPONSE DEGF; Surface Treatment: ANODIZE; Material: STEEL FLOW CONTROL DEVICE; Nondefinitive Spec/std Data: 1500 CLASS AND A STYLE. 20 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-529-3225 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.