The Valve,check, cataloged under National Stock Number 4820-00-433-3832, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-433-3832 |
| Primary Part Number | 4026-4 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Hydro-Aire Aerospace Corp |
| Status | CANCELLED |
| Disk Loading Method | SPRING |
| Flow Control Device | POPPET |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Material | ALUMINUM ALLOY BODY |
| Style Designator | STRAIGHT THRU |
| Test Data Document | 81349-MIL-V-5524 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nondefinitive Spec/std Data | C STYLE AND 3000 CLASS |
| Connection Style | GASKET SEAL (BOSS) ALL ENDS |
| Connection Type | THREADED INTERNAL BOSS ALL ENDS |
| Media for Which Designed | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE |
| Thread Series Designator | UNF ALL ENDS |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Class | 3B ALL ENDS |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Valve Operation Method | AUTOMATIC |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4026-4 | Hydro-Aire Aerospace Corp (USA) |
| K1280-4 | Essex Industries, Inc. Dba Essex Industries (USA) |
| 5-1048-76 | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 5-1048-76 | 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 |
| MILV5524CLASS3000 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| AN6280-4 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
NSN 4820-00-433-3832 is a Valve,check, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-433-3832 has 7 cross-referenced part numbers: 4026-4 (Hydro-Aire Aerospace Corp), K1280-4 (Essex Industries, Inc. Dba Essex Industries), 5-1048-76 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 5-1048-76 (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) and 2 more.
There are 5 known substitutes for 4820-00-433-3832: 3530-00-390-4540, 5961-00-439-3749, 5950-00-500-9024 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4026-4: Disk Loading Method: SPRING; Flow Control Device: POPPET; Thread Direction: RIGHT-HAND ALL ENDS; Material: ALUMINUM ALLOY BODY. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-433-3832 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.