The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-007-1047, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-007-1047 |
| Item Name | Valve,calibrated Flow |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | ORIFICE PLATE |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Thread Class | 3B |
| First End Style Designator | GASKET SEAL |
| Material Document and Classification | QQ-A-225/6, T4 FED SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED |
| End Connection Quantity | 2 |
| First End Connection Type | THREADED INTERNAL BOSS |
| Surface Treatment | ANODIZE OUTSIDE |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | ALUMINUM ALLOY FLOW CONTROL DEVICE |
| Media for Which Designed | HYDRAULIC FLUID, SILICATE-ESTER BASE |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 7/8-14 UNF FIRST END |
| Valve Discharge Flow Rate | 3.5 GALLONS PER MINUTE |
| 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 |
|---|---|
| 991740-6 | 5/2 Secondary reference U.S. Government activity |
| 1121L1-10-3-50CLS | 3/2 Design control — primary reference U.S. Government activity |
| 991740-7 | 5/9 Secondary reference U.S. Government activity |
| 1121L1-10-3-50CLS | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-007-1047 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-007-1047: Flow Control Device: ORIFICE PLATE; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE. 18 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.