The Valve,check, cataloged under National Stock Number 4820-01-423-7611, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-423-7611 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Mounting Position | VERTICAL |
| Connection Type | FLANGE FIRST END |
| Style Designator | STRAIGHT THRU |
| Surface Treatment | ZINC |
| Material | STEEL BODY |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | COPPER ALLOY SEAT |
| 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 |
| Reference | Meaning |
|---|---|
| VV-0400-71755588 | 3/9 Design control — primary reference Kings Point Machinery Inc Dba Kpm |
| 1027 | D/9 Drawing number reference only Kings Point Machinery Inc Dba Kpm |
| 1027 4IN STEEL | 5/9 Secondary reference Kings Point Machinery Inc Dba Kpm |
NSN 4820-01-423-7611 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-423-7611: Flow Control Device: BALL; Mounting Position: VERTICAL; Connection Type: FLANGE FIRST END; Style Designator: STRAIGHT THRU. 9 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.