The Seat,valve, cataloged under National Stock Number 4820-00-035-9597, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-035-9597 |
| Primary Part Number | 2374F51 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa |
| Status | ACTIVE |
| Style Designator | PLAIN THREADED |
| Material Document and Classification | QQ-S-763,CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 1.000 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 2373FPC51 | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA) |
| 2374F51 PRIMARY | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA) |
| 2733FSH1PC51 | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA) |
| 2377FPC51 | Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA) |
| WW8440530PC51 | General Electric Company (USA) |
| WW8454423PC51 | General Electric Company (USA) |
NSN 4820-00-035-9597 is a Seat,valve, manufactured by Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-035-9597 has 6 manufacturer part numbers on file: 2373FPC51 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), 2374F51 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), 2733FSH1PC51 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), 2377FPC51 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), WW8440530PC51 (General Electric Company) and 1 more.
Key specifications for 2374F51: Style Designator: PLAIN THREADED; Material Document and Classification: QQ-S-763,CLASS 410 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Body Inside Diameter: 1.000 INCHES NOMINAL IN; Material: STEEL OVERALL. 4 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.