The Valve,restrictor Check, cataloged under National Stock Number 4820-00-640-5635, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 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 | 4820-00-640-5635 |
| Primary Part Number | 1116-516436 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Parker Hannifin Corporation Div Aerospace Group Headquarters |
| Status | ACTIVE |
| Thread Series Designator | UN FIRST END |
| Material | RUBBER SYNTHETIC PACKING |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| Nominal Pipe Size Accommodated | 1.000 INCHES SECOND END IN |
| Mounting Position | HORIZONTAL |
| Thread Series Designator | ANPT SECOND END |
| Aperture Diameter | 0.040 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 11-1/2 SECOND END |
| Style Designator | STRAIGHT THRU |
| Thread Quantity Per Inch | 14 FIRST END |
| Surface Treatment | ANODIZE |
| Connection Style | PLAIN (TUBE) SECOND END |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST END IN |
| Operating Pressure | 10.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Seat Angle | 37.0 DEGREES FIRST END |
| Material | ALUMINUM ALLOY BODY |
| Surface Treatment Document and Classification | MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.000 INCHES SECOND END IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1116-516436 PRIMARY | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 525L | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA) |
| 525L | Parker Hannifin Corporation Div Aerospace Group Headquarters (USA) |
| 633757 | Lockheed Martin Corp (USA) |
| 1116-516436 | Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters (USA) |
NSN 4820-00-640-5635 is a Valve,restrictor Check, manufactured by Parker Hannifin Corporation Div Aerospace Group Headquarters, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-640-5635 has 5 cross-referenced part numbers: 1116-516436 (Parker Hannifin Corporation Div Aerospace Group Headquarters), 525L (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters), 525L (Parker Hannifin Corporation Div Aerospace Group Headquarters), 633757 (Lockheed Martin Corp), 1116-516436 (Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters).
There are 2 known substitutes for 4820-00-640-5635: 6515-01-413-9293, 6515-01-441-2130. Verify interchangeability with system specifications before substitution.
Key specifications for 1116-516436: Thread Series Designator: UN FIRST END; Material: RUBBER SYNTHETIC PACKING; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; Flow Control Device: DISK. 26 total characteristics are documented in the Federal Logistics Information System.