The Seat,valve, cataloged under National Stock Number 4810-00-149-2156, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-149-2156 |
| Primary Part Number | 12346A |
| Item Name | Seat,valve |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa |
| Status | ACTIVE |
| Style Designator | PLAIN THREADED |
| Material | STEEL CORROSION RESISTING BODY |
| Seating Surface Shape | RADIAL |
| 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 |
|---|---|
| 6680707-3 | General Electric Company (USA) |
| 6680707-3 | General Electric Company (USA) |
| 2168FPC3-22 | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA) |
| 12346A PRIMARY | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA) |
| Reference | Meaning |
|---|---|
| W6680707PC3AND22 | 5/9 Secondary reference B J and R Machine and Gear Co |
| 6680707-3 | 5/9 Secondary reference General Electric Co Switchgear and Control Division of Apparatus Group |
| 6680707-3 | 5/9 Secondary reference General Electric Co Naval and Drive Turbine Systems Dept |
NSN 4810-00-149-2156 is a Seat,valve, manufactured by Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-149-2156 has 4 manufacturer part numbers on file: 6680707-3 (General Electric Company), 6680707-3 (General Electric Company), 2168FPC3-22 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), 12346A (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa).
Key specifications for 12346A: Style Designator: PLAIN THREADED; Material: STEEL CORROSION RESISTING BODY; Seating Surface Shape: RADIAL. 3 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.