The Valve,vacuum Regulating, cataloged under National Stock Number 4820-00-986-3247, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-986-3247 |
| Item Name | Valve,vacuum Regulating |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 4 |
| Flow Control Device | DISK, FLAT |
| Body Style | SINGLE CONNECTION, STRAIGHT FLOW |
| First End Flange Thickness | 0.188 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 3.375 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| First End Bolt Hole Diameter | 0.281 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 2.875 INCHES NOMINAL IN |
| End Connection Quantity | 1 |
| Body Material | STEEL |
| First End Connection Type | PLAIN FACE FLANGE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Material | STEEL FLOW CONTROL DEVICE |
| 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 |
|---|---|
| 5916AEACC | 3/9 Design control — primary reference U.S. Government activity |
| 5916AEACC | C/1 Advisory reference — outside the item-of-supply concept Fairbanks Morse, Llc |
NSN 4820-00-986-3247 is a Valve,vacuum Regulating, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-986-3247: First End Bolt Hole Quantity: 4; Flow Control Device: DISK, FLAT; Body Style: SINGLE CONNECTION, STRAIGHT FLOW; First End Flange Thickness: 0.188 INCHES NOMINAL IN. 14 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.