The Valve,diaphragm,stop, cataloged under National Stock Number 4820-01-522-6359, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-522-6359 |
| Item Name | Valve,diaphragm,stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 0.0 BAR MINIMUM AND 10.0 BAR MAXIMUM POWER DRIVE |
| Material | PLASTIC OVERALL |
| Valve Operation Method | AIR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 63040D-7711412 | 5/9 Secondary reference Gemu Valves Inc |
| 63040D-771141 | 5/9 Secondary reference Gemu Valves Inc |
| 63040D-7711413 | 3/9 Design control — primary reference Gemu Valves Inc |
NSN 4820-01-522-6359 is a Valve,diaphragm,stop, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-522-6359: Style Designator: STRAIGHT THRU; Operating Pressure: 0.0 BAR MINIMUM AND 10.0 BAR MAXIMUM POWER DRIVE; Special Features: CONNECTION - UNION ENDS WITH METRIC SOCKETS; NOMINAL SIZE 40MM; INCLUDES MAINTANCE-FREE PISTON ACTUATOR 192MM LENGTH AND 125MM WIDTH MM; End Item Identification: BIOREACTOR, GEMU VALVES INC. 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.