The Valve,check, cataloged under National Stock Number 4820-01-407-3661, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Clark Equipment Co Div Doosan Infracore Portable Power. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-407-3661 |
| Primary Part Number | 35368026 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Clark Equipment Co Div Doosan Infracore Portable Power |
| Status | ACTIVE |
| Nominal Length | 2.170 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| 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 |
|---|---|
| 35368026 PRIMARY | Clark Equipment Co Div Doosan Infracore Portable Power (USA) |
| 36840379 | Clark Equipment Co Div Doosan Infracore Portable Power (USA) |
| Reference | Meaning |
|---|---|
| 90214-125 | 3/9 Design control — primary reference Eaton Corporation Dba Air Controls Division Div Air Controls Division |
NSN 4820-01-407-3661 is a Valve,check, manufactured by Clark Equipment Co Div Doosan Infracore Portable Power, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-407-3661 has 2 manufacturer part numbers on file: 35368026 (Clark Equipment Co Div Doosan Infracore Portable Power), 36840379 (Clark Equipment Co Div Doosan Infracore Portable Power).
Key specifications for 35368026: Nominal Length: 2.170 INCHES ALL ENDS IN; Style Designator: STRAIGHT THRU; Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF. 4 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.