The Valve,check, cataloged under National Stock Number 4820-00-602-4435, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Parker Hannifin Corporation Div Aerospace Group Headquarters. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-602-4435 |
| Primary Part Number | 1111-545032 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Parker Hannifin Corporation Div Aerospace Group Headquarters |
| Status | ACTIVE |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Class | 3A ALL ENDS A |
| Disk Loading Method | SPRING |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Renewable Seat Ring Type | PRESSED-IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Mounting Facility | THREADED FASTENER |
| Nominal Thread Size | 1.312 INCHES ALL ENDS IN |
| Thread Series Designator | UN ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material | ALUMINUM ALLOY OVERALL |
| Surface Treatment | ANODIZE |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1111-545032 | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA) |
| WC90-1E | New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc (USA) |
| 308500 | Transdigm Inc Div Aero Fluid Products (USA) |
| 1111-545032 PRIMARY | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 695135 PRIMARY | Lockheed Martin Corp (USA) |
NSN 4820-00-602-4435 is a Valve,check, manufactured by Parker Hannifin Corporation Div Aerospace Group Headquarters, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-602-4435 has 5 cross-referenced part numbers: 1111-545032 (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), WC90-1E (New Sd Inc Seaton-Wilson Div Sub of Bei Electronics Inc), 308500 (Transdigm Inc Div Aero Fluid Products), 1111-545032 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 695135 (Lockheed Martin Corp).
There are 2 known substitutes for 4820-00-602-4435: 5330-00-057-6914, 3020-01-096-0730. Verify interchangeability with system specifications before substitution.
Key specifications for 1111-545032: Thread Quantity Per Inch: 12 ALL ENDS; Connection Style: FLARED (TUBE) ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Thread Class: 3A ALL ENDS A. 20 total characteristics are documented in the Federal Logistics Information System.