The Valve,check, cataloged under National Stock Number 4820-01-398-3400, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies. Government technical data includes 7 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-398-3400 |
| Primary Part Number | 85CD0505-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 8.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 165.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Mounting Facility | WAFER |
| Material | ALUMINUM ALLOY 2017 BODY |
| 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 |
|---|---|
| 85CD0505-1 PRIMARY | L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies (USA) |
| CYLB51405-1 | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA) |
NSN 4820-01-398-3400 is a Valve,check, manufactured by L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-398-3400 has 2 manufacturer part numbers on file: 85CD0505-1 (L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies), CYLB51405-1 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).
Key specifications for 85CD0505-1: Flow Control Device: DISK; Style Designator: STRAIGHT THRU; Operating Pressure: 8.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Maximum Operating Temp: 165.0 FAHRENHEIT SINGLE RESPONSE DEGF. 7 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.