The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-288-9229, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-288-9229 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 8 |
| Second End Relationship with First End | NOT IDENTICAL |
| First End Flange Outside Diameter | 8.500 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Second End Bolt Hole Quantity | 8 |
| First End Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| First End Center to Center Distance Between Holes Along Width | 7.000 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Second End Bolt Circle Diameter | 7.500 INCHES NOMINAL IN |
| Second End Style Designator | PLAIN |
| Second End Flange Shape Style | ROUND W/ BOLT HOLES |
| First End Connection Type | PLAIN FACE FLANGE |
| Second End Flange Outside Diameter | 9.000 INCHES NOMINAL IN |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Material | BRONZE SEAT |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | COPPER ALLOY STEM |
| Second End Connection Type | PLAIN FACE FLANGE |
| Second End Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| DE99S4810-492 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-00-288-9229 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-288-9229: First End Bolt Hole Quantity: 8; Second End Relationship with First End: NOT IDENTICAL; First End Flange Outside Diameter: 8.500 INCHES NOMINAL IN; First End Style Designator: PLAIN. 19 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.