The Valve,check, cataloged under National Stock Number 4820-00-894-2165, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Div Circor. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-894-2165 |
| Primary Part Number | 11518 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Circor Aerospace, Inc. Div Circor |
| Status | ACTIVE |
| Disk Loading Method | SPRING |
| Nominal Thickness | 0.312 INCHES FIRST END IN |
| Nominal Length | 2.375 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.375 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.328 INCHES FIRST END IN |
| Operating Pressure | 60.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Material | ALUMINUM ALLOY OVERALL |
| Flange Face Design | PLAIN SECOND END |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 1.812 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 2.375 INCHES FIRST END IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Style Designator | STRAIGHT THRU |
| Flow Control Device | DISK |
| Connection Type | FLANGE FIRST END |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 1.812 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Nominal Width | 2.375 INCHES SECOND END IN |
| Maximum Operating Temp | 135.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Valve Operation Method | AUTOMATIC |
| Surface Treatment | ANODIZE |
| Flange Face Design | PLAIN FIRST END |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Mounting Position | HORIZONTAL |
| Nominal Thickness | 0.250 INCHES SECOND END IN |
| Nominal Length | 3.000 INCHES FIRST END IN |
| Bolt Hole Nominal Diameter | 0.266 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 3.000 INCHES FIRST END IN |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 670870-101 | Lockheed Martin Corp (USA) |
| 670870-101 | H-B Instrument Co (USA) |
| 11518 PRIMARY | Circor Aerospace, Inc. Div Circor (USA) |
| 11518 | Benbow Mfg Corp (USA) |
NSN 4820-00-894-2165 is a Valve,check, manufactured by Circor Aerospace, Inc. Div Circor, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-894-2165 has 4 cross-referenced part numbers: 670870-101 (Lockheed Martin Corp), 670870-101 (H-B Instrument Co), 11518 (Circor Aerospace, Inc. Div Circor), 11518 (Benbow Mfg Corp).
There are 11 known substitutes for 4820-00-894-2165: 5133-00-236-4066, 5945-00-258-9189, 3040-00-356-3507 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 11518: Disk Loading Method: SPRING; Nominal Thickness: 0.312 INCHES FIRST END IN; Nominal Length: 2.375 INCHES SECOND END IN; Center to Center Nominal Distance Between Bolt Holes Along Length: 2.375 INCHES FIRST END IN. 30 total characteristics are documented in the Federal Logistics Information System.