The Valve,check, cataloged under National Stock Number 4820-00-243-6699, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-243-6699 |
| Primary Part Number | 810-1385637-8 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Disk Loading Method | WEIGHT |
| Flow Control Device | DISK |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Valve Operation Method | AUTOMATIC |
| Mounting Position | HORIZONTAL |
| Bolt Hole Quantity | 14 FIRST END |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Flange Face Design | PLAIN FIRST END |
| Bolt Hole Nominal Diameter | 0.688 INCHES FIRST END IN |
| Criticality Code Justification | ZZZY |
| Material | COPPER ALLOY 922 BODY |
| Nominal Thickness | 1.312 INCHES FIRST END IN |
| Style Designator | STRAIGHT THRU |
| Bolt Circle Nominal Diameter | 11.062 INCHES FIRST END IN |
| Face to Face Distance | 18.500 INCHES IN |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Outside Diameter | 12.375 INCHES FIRST END IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Connection Type | FLANGE FIRST END |
| Material | COPPER ALLOY 922 AND NICKEL ALLOY AND NICKEL ALLOY 400 STEM |
| Renewable Seat Ring Type | THREADED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 810-1385637-8 | Naval Ship Systems Command (USA) |
NSN 4820-00-243-6699 is a Valve,check, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-243-6699 has 1 cross-referenced part number: 810-1385637-8 (Naval Ship Systems Command).
There is 1 known substitute for 4820-00-243-6699: 4820-00-878-4325. Verify interchangeability with system specifications before substitution.
Key specifications for 810-1385637-8: Disk Loading Method: WEIGHT; Flow Control Device: DISK; Flange Shape: ROUND WITH HOLES FIRST END; Valve Operation Method: AUTOMATIC. 21 total characteristics are documented in the Federal Logistics Information System.