The Valve,check, cataloged under National Stock Number 4820-00-289-2176, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 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 | 4820-00-289-2176 |
| Primary Part Number | 4DP2091APC330-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY SEAT |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Nominal Pipe Size Accommodated | 1.000 INCHES ALL ENDS IN |
| Offset Distance | 1.250 INCHES IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Style Designator | OFFSET |
| Flow Control Device | DISK |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Operation Method | AUTOMATIC |
| Connection Style | STREAMLINED WITH TWO BRAZING RING (PIPE) ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 340-2100-1002787PCV1 | Naval Sea Systems Command (USA) |
| 3879-20PCV1 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| N330-1 | The Walworth Company (USA) |
| 4268-181REVAPCV134 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 340-6700-937209ALT2PCV2 | Naval Ship Systems Command (USA) |
| 340-2100-1002787PCV1 | Naval Ship Systems Command (USA) |
| 193-1 | The Walworth Company (USA) |
| 576-6700-1505182REVAPCV134 | Naval Sea Systems Command (USA) |
| 3868-143ALT2PCV2 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 576-6700-1505182REVAPCV134 | Naval Ship Systems Command (USA) |
| 340-6700-937209ALT2PCV2 | Naval Sea Systems Command (USA) |
| 4DP2091APC330-1 PRIMARY | The Walworth Company (USA) |
NSN 4820-00-289-2176 is a Valve,check, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-289-2176 has 12 cross-referenced part numbers: 340-2100-1002787PCV1 (Naval Sea Systems Command), 3879-20PCV1 (Electric Boat Corporation Div General Dynamics Electric Boat), N330-1 (The Walworth Company), 4268-181REVAPCV134 (Electric Boat Corporation Div General Dynamics Electric Boat), 340-6700-937209ALT2PCV2 (Naval Ship Systems Command) and 7 more.
There are 12 known substitutes for 4820-00-289-2176: 6625-00-003-1356, 3110-00-100-0351, 5930-00-246-8391 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4DP2091APC330-1: Material: COPPER ALLOY BODY; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Disk Loading Method: SPRING; Material: COPPER ALLOY SEAT. 14 total characteristics are documented in the Federal Logistics Information System.