The Valve,check, cataloged under National Stock Number 4820-00-412-2356, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is National Oilwell. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-412-2356 |
| Primary Part Number | 3856 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | National Oilwell |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Disk Loading Method | WEIGHT |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Face to Face Distance | 14.000 INCHES IN |
| Operating Pressure | 650.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Flange Face Design | PLAIN FIRST END |
| Bolt Hole Nominal Diameter | 0.688 INCHES FIRST END IN |
| Material | COPPER ALLOY 903 BODY |
| Bolt Hole Quantity | 10 FIRST END |
| Criticality Code Justification | ZZZY |
| Valve Operation Method | AUTOMATIC |
| Bolt Circle Nominal Diameter | 7.188 INCHES FIRST END IN |
| Nominal Outside Diameter | 8.688 INCHES FIRST END IN |
| Connection Type | FLANGE FIRST END |
| Material | COPPER ALLOY 903 AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 903 SEAT |
| Style Designator | STRAIGHT THRU |
| Media for Which Designed | WATER, SALT SINGLE RESPONSE |
| Nominal Thickness | 1.438 INCHES FIRST END IN |
| Mounting Position | HORIZONTAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 3856 | National Oilwell (USA) |
| 3856L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 3856-4IN | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 3856 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 3856-4IN | National Oilwell (USA) |
| SSBN609-1998944L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| SSBN609-1998944 | Naval Ship Systems Command (USA) |
NSN 4820-00-412-2356 is a Valve,check, manufactured by National Oilwell, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-412-2356 has 7 cross-referenced part numbers: 3856 (National Oilwell), 3856L1 (Naval Inventory Control Point Mechanicsburg), 3856-4IN (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 3856 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 3856-4IN (National Oilwell) and 2 more.
There are 12 known substitutes for 4820-00-412-2356: 3020-00-288-6450, 6515-00-307-5596, 4510-00-318-8208 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3856: Flow Control Device: DISK; Disk Loading Method: WEIGHT; Flange Shape: ROUND WITH HOLES FIRST END; Face to Face Distance: 14.000 INCHES IN. 21 total characteristics are documented in the Federal Logistics Information System.