The Seat,valve, cataloged under National Stock Number 4820-00-389-7199, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. Government technical data includes 8 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-389-7199 |
| Primary Part Number | V30527 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.187 INCHES NOMINAL IN |
| Flange Diameter | 2.312 INCHES NOMINAL IN |
| Body Outside Diameter | 2.3755 INCHES MINIMUM AND 2.3760 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Body Inside Diameter | 1.790 INCHES MINIMUM AND 1.791 INCHES MAXIMUM IN |
| Under Flange Height | 0.437 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Seating Surface Shape | FLAT |
| 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 |
|---|---|
| V30527 PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| D62011PC131 | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| D62011PC131 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| V30527 | 5/9 Secondary reference U.S. Government activity |
| D62011PC131 | 5/9 Secondary reference U.S. Government activity |
| V30527 | 3/9 Design control — primary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| V30527 | 5/9 Secondary reference U.S. Government activity |
| D62011PC131 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-389-7199 is a Seat,valve, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-389-7199 has 2 manufacturer part numbers on file: V30527 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), D62011PC131 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions).
Key specifications for V30527: Flange Seat to Disk End Height: 0.187 INCHES NOMINAL IN; Flange Diameter: 2.312 INCHES NOMINAL IN; Body Outside Diameter: 2.3755 INCHES MINIMUM AND 2.3760 INCHES MAXIMUM IN; Style Designator: PLAIN FLANGED. 8 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.