The Valve,check, cataloged under National Stock Number 4820-01-469-2422, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Delaware Mfg Industries Corp. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-469-2422 |
| Primary Part Number | CVH05-0375S |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Delaware Mfg Industries Corp |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | THREADED INTERNAL TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES ALL ENDS IN |
| Operating Pressure | 10000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.563 INCHES ALL ENDS IN |
| Surface Treatment | OXIDE |
| Media for Which Designed | HYDRAULIC FLUID, PETROLEUM BASE SECOND RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID, MINERAL BASE FIRST RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE THIRD RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID, SILICATE-ESTER BASE FOURTH RESPONSE |
| Thread Class | 2B ALL ENDS |
| Material | STEEL BODY |
| Material | STEEL SEAT |
| Material | STEEL FLOW CONTROL DEVICE |
| Thread Series Designator | UNF ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| CVH05-0375S PRIMARY | Delaware Mfg Industries Corp (USA) |
| Reference | Meaning |
|---|---|
| CVH-0375S | C/1 Advisory reference — outside the item-of-supply concept Delaware Mfg Industries Corp |
NSN 4820-01-469-2422 is a Valve,check, manufactured by Delaware Mfg Industries Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-469-2422 has 1 manufacturer part number on file: CVH05-0375S (Delaware Mfg Industries Corp).
Key specifications for CVH05-0375S: Flow Control Device: POPPET; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: THREADED INTERNAL TUBE ALL ENDS. 20 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.