The Valve,vent-Check, cataloged under National Stock Number 4820-01-708-8560, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydrasearch Company, Llc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-708-8560 |
| Primary Part Number | 2-PM1-SS-W |
| Item Name | Valve,vent-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Bolt Circle Nominal Diameter | 5.000 INCHES FIRST END IN |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Bolt Hole Nominal Diameter | 6.000 INCHES FIRST END IN |
| Valve Size | 2.000 INCHES IN |
| Nominal Outside Diameter | 5.000 INCHES SECOND END IN |
| Nominal Outside Diameter | 6.000 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Face to Face Distance | 6.375 INCHES IN |
| Media for Which Designed | WATER, SALT SINGLE RESPONSE |
| Material | STEEL COMP 316 OVERALL |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 6.125 INCHES SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2-PM1-SS-W PRIMARY | Hydrasearch Company, Llc (USA) |
NSN 4820-01-708-8560 is a Valve,vent-Check, manufactured by Hydrasearch Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-708-8560 has 1 manufacturer part number on file: 2-PM1-SS-W (Hydrasearch Company, Llc).
Key specifications for 2-PM1-SS-W: Flow Control Device: BALL; Flange Shape: ROUND WITH HOLES FIRST END; Flange Face Design: PLAIN FIRST END; Connection Style: PLAIN (PIPE) FIRST END. 18 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.