The Seat,valve, cataloged under National Stock Number 4820-01-346-0618, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is General Electric Company. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-346-0618 |
| Primary Part Number | 3004G56PC1 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Body Outside Diameter | 3.100 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-763,CL410,COND T FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| Body Inside Diameter | 1.560 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING SEAT |
| 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 |
|---|---|
| 3004G56PC1 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 3004G56 | D/9 Drawing number reference only General Electric Company |
| 3004G56PC1 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| 3004G56-1 | 5/9 Secondary reference General Electric Company |
| 3004G56PC1 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 3004G56-001 | C/1 Advisory reference — outside the item-of-supply concept General Electric Company |
| 3004G56-1 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 3004G56-1 | 3/9 Design control — primary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
NSN 4820-01-346-0618 is a Seat,valve, manufactured by General Electric Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-346-0618 has 1 manufacturer part number on file: 3004G56PC1 (General Electric Company).
Key specifications for 3004G56PC1: Overall Height: 3.320 INCHES NOMINAL IN; Body Outside Diameter: 3.100 INCHES NOMINAL IN; Style Designator: PLAIN; Material Document and Classification: QQ-S-763,CL410,COND T FED SPEC SINGLE MATERIAL RESPONSE SEAT. 6 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.