The Valve,check, cataloged under National Stock Number 4820-00-529-4288, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-529-4288 |
| Primary Part Number | 475HT8D |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Parker Hannifin Corporation Div Aerospace Group Headquarters |
| Status | CANCELLED |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |
| Seat Angle | 37.0 DEGREES FIRST END |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Material | ALUMINUM ALLOY BODY |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Connection Style | FLARED (TUBE) FIRST END |
| Flow Control Device | CONE |
| Thread Class | 3A FIRST END A |
| Thread Direction | RIGHT-HAND FIRST END |
| Disk Loading Method | SPRING |
| Thread Series Designator | UNF FIRST END |
| Material | ALUMINUM ALLOY SEAT |
| Thread Quantity Per Inch | 16 FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Mounting Position | HORIZONTAL |
| Material | STEEL FLOW CONTROL DEVICE |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 401561 | Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA) |
| 475HT8D | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA) |
| 475HT8D PRIMARY | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 2-2643-1 | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA) |
NSN 4820-00-529-4288 is a Valve,check, manufactured by Parker Hannifin Corporation Div Aerospace Group Headquarters, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-529-4288 has 4 cross-referenced part numbers: 401561 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div), 475HT8D (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), 475HT8D (Parker Hannifin Corporation Div Aerospace Group Headquarters), 2-2643-1 (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters).
There are 4 known substitutes for 4820-00-529-4288: 2530-00-864-0939, 4810-01-055-4860, 9330-01-146-8009 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 475HT8D: Media for Which Designed: HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE; Seat Angle: 37.0 DEGREES FIRST END; Nominal Thread Size: 0.750 INCHES FIRST END IN; Material: ALUMINUM ALLOY BODY. 18 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-529-4288 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.