The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-243-0918, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-243-0918 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Valve Stem Design | DOUBLE SEAT |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | PLAIN |
| End Connection Quantity | 3 |
| Valve Loading Method | SPRING |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| First End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 60955 | 5/9 Secondary reference U.S. Government activity |
| 61781B | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-243-0918 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-399-2431, 3419-01-633-4007, 5930-01-664-8929. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-243-0918: Flow Control Device: DISK; Valve Stem Design: DOUBLE SEAT; Second End Relationship with First End: IDENTICAL; Body Style: TEE. 15 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.