The Valve,check, cataloged under National Stock Number 4820-01-712-2784, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-712-2784 |
| Primary Part Number | 4RHDMTXSCF |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Nominal Length | 52.5 MILLIMETERS ALL ENDS MM |
| Mounting Position | HORIZONTAL |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.4375 INCHES ALL ENDS IN |
| Thread Quantity Per Inch | 20 ALL ENDS |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| 830662 | Stemme Gmbh (DEU) |
| MEP-00005786 | Safran Electronics & Defense (FRA) |
| 4RHDMTXSCF PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| MEP-00005785 | Safran Electronics & Defense (FRA) |
NSN 4820-01-712-2784 is a Valve,check, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-712-2784 has 4 manufacturer part numbers on file: 830662 (Stemme Gmbh), MEP-00005786 (Safran Electronics & Defense), 4RHDMTXSCF (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), MEP-00005785 (Safran Electronics & Defense).
Key specifications for 4RHDMTXSCF: Nominal Length: 52.5 MILLIMETERS ALL ENDS MM; Mounting Position: HORIZONTAL; Style Designator: STRAIGHT THRU; Thread Direction: RIGHT-HAND ALL ENDS. 8 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.