The Valve,check, cataloged under National Stock Number 4820-00-843-2893, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-843-2893 |
| Primary Part Number | WW-V-51 CLCTYIV |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | General Services Administration Federal Supply Service |
| Status | CANCELLED |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Material Document and Classification | QQ-C-390, ALLOY D4D FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material Document and Classification | QQ-C-390, ALLOY D4D FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Nondefinitive Spec/std Data | A GROUP AND III TYPE |
| Flow Control Device | DISK |
| Style Designator | STRAIGHT THRU |
| Nominal Pipe Size Accommodated | 2.000 INCHES ALL ENDS IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SIZE OF END CONNECTIONS |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Material | COPPER ALLOY 922 SEAT |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Material | COPPER ALLOY 922 BODY |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Maximum Operating Temp | 550.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Valve Operation Method | AUTOMATIC |
| Specification/standard Data | 81349-MIL-V-18436 GOVERNMENT SPECIFICATION |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| WW-V-51 CLCTYIV | General Services Administration Federal Supply Service (USA) |
| WW-V-51 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| T473B-2IN | Nibco Inc (USA) |
| 76E | Crane Co Div Valve Div (USA) |
| 2IN FIG-3412 | The Walworth Company (USA) |
| FIG-3412X50MM | The Walworth Company (USA) |
NSN 4820-00-843-2893 is a Valve,check, manufactured by General Services Administration Federal Supply Service, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-843-2893 has 6 cross-referenced part numbers: WW-V-51 CLCTYIV (General Services Administration Federal Supply Service), WW-V-51 (Federal Specifications Promulgated by General Services Administration Washington DC), T473B-2IN (Nibco Inc), 76E (Crane Co Div Valve Div), 2IN FIG-3412 (The Walworth Company) and 1 more.
There are 3 known substitutes for 4820-00-843-2893: 5120-00-223-1018, 4820-00-289-3334, 4820-00-844-4196. Verify interchangeability with system specifications before substitution.
Key specifications for WW-V-51 CLCTYIV: Nominal Thread Size: 2.000 INCHES ALL ENDS IN; Material Document and Classification: QQ-C-390, ALLOY D4D FED SPEC SINGLE MATERIAL RESPONSE SEAT; Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE. 24 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-843-2893 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.