The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-288-6668, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Grove Valve Operations. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-288-6668 |
| Primary Part Number | N450 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Grove Valve Operations |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 6 |
| Flow Control Device | DIAPHRAGM |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | THREADED |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 8.875 INCHES NOMINAL IN |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Flange Thickness | 0.812 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 5.938 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF |
| First End Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 4.625 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 15.0 TO 275.0 CAMERA MOUNT |
| Valve Loading Method | DOME |
| First End Connection Type | PLAIN FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Material | COBALT ALLOY SEAT |
| Material | COBALT ALLOY FLOW CONTROL DEVICE |
| Media for Which Designed | STEAM |
| Maximum Inlet Pressure Rating | ERR-060 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| N450 PRIMARY | Grove Valve Operations (USA) |
| 77/11480BD084ACID882096126 PRIMARY | Grove Valve Operations (USA) |
| Reference | Meaning |
|---|---|
| MIL-V-17848 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-288-6668 is a Valve,regulating,fluid Pressure, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-288-6668 has 2 manufacturer part numbers on file: N450 (Grove Valve Operations), 77/11480BD084ACID882096126 (Grove Valve Operations).
Key specifications for N450: First End Bolt Hole Quantity: 6; Flow Control Device: DIAPHRAGM; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: THREADED. 24 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.