The Valve,check, cataloged under National Stock Number 4820-01-679-0798, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-679-0798 |
| Primary Part Number | DT-370-MSMO-5 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division |
| Status | ACTIVE |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 0.375 INCHES IN |
| Nominal Thread Size | 0.688 INCHES FIRST END IN |
| Face to Face Distance | 1.350 INCHES IN |
| Thread Quantity Per Inch | 16 FIRST END |
| Material | STEEL OVERALL |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING |
| Thread Series Designator | UN FIRST END |
| 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 |
|---|---|
| DT-370-MSMO-5 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA) |
| 21497469-001 | General Dynamics Land Systems Canadacorp (CAN) |
| DT-370-MSMO-5 | Parker Hannifin Canada Company (CAN) |
| Reference | Meaning |
|---|---|
| DT-370-MSMO-5 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-679-0798 is a Valve,check, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-679-0798 has 3 manufacturer part numbers on file: DT-370-MSMO-5 (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division), 21497469-001 (General Dynamics Land Systems Canadacorp), DT-370-MSMO-5 (Parker Hannifin Canada Company).
Key specifications for DT-370-MSMO-5: Connection Type: THREADED EXTERNAL BOSS ALL ENDS; Style Designator: STRAIGHT THRU; Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 0.375 INCHES IN. 11 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.