The Valve,calibrated Flow, cataloged under National Stock Number 4820-01-506-4445, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-506-4445 |
| Item Name | Valve,calibrated Flow |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | GASKET SEAL |
| Special Test Features | HYDROSTATIC TEST PRESSURE 450 PSI; HAS BEEN ACCEPTED AS MEETING SEAWOLF CLASS ACOUSTIC REQUIREMENTS BY PMS35D LTR 350A2A/0268 DATED 23 AUG. 02; HAS BEEN ACCEPTED AS MEETING THE H.I.SHOCK REQUIREMENTS OF MIL-S-901C DATED 15 JAN. 1963, BY EB LTR 402/02/HGS/0839 DATED 5/02 IN ACCORDANCE WITH PMS350 MOU DATED 12/95; MEETS VIBRATION REQUIREMENTS OF MIL-STD-167B, TYPE 1. IN |
| Temp Rating | 225.0 FAHRENHEIT NOMINAL DEGF |
| Second End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| End Connection Quantity | 2 |
| Valve Size | 0.750 INCHES IN |
| Second End Style Designator | GASKET SEAL |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Media for Which Designed | WATER |
| Maximum Inlet Pressure Rating | ERR-060 |
| Furnished Items | TAILPIECE |
| Valve Discharge Flow Rate | 3.00 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 |
|---|---|
| 10013357 3.00 GPM | 5/2 Secondary reference U.S. Government activity |
| 6-3502-3.00AUT | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-506-4445 is a Valve,calibrated Flow, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-506-4445: Flow Control Device: DIAPHRAGM; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU; First End Style Designator: GASKET SEAL. 16 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.