The Valve,gate, cataloged under National Stock Number 4820-01-143-4308, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-143-4308 |
| Primary Part Number | SW-12401 DWG E-34873 |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICAL |
| Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 100.0 FAHRENHEIT WATER-OIL-GAS DEGF |
| Operating Pressure and Type | 1920.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | SOCKET, WELD, PIPE |
| Valve Size | 0.500 INCHES IN |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Bonnet Attachment Method | BOLTED |
| Pressure Class | ERR-060 |
| Material | STEEL COMP 316 BODY |
| Material | STEEL COMP 316 SEAT |
| Material | STEEL COMP 316 STEM |
| Material | STEEL COMP 316 DISK |
| Valve Operation Method | MANUAL |
| 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 |
|---|---|
| SW-12401 DWG E-34873 PRIMARY | Flowserve Inc (USA) |
| E-34873 PART SW 12401 | Flowserve Inc (USA) |
| 1/4 IN SW 12401 PRIMARY | Flowserve Inc (USA) |
| Reference | Meaning |
|---|---|
| E-34873 | D/9 Drawing number reference only Flowserve Inc |
NSN 4820-01-143-4308 is a Valve,gate, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-143-4308 has 3 manufacturer part numbers on file: SW-12401 DWG E-34873 (Flowserve Inc), E-34873 PART SW 12401 (Flowserve Inc), 1/4 IN SW 12401 (Flowserve Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-343-7400. Verify interchangeability with system specifications before substitution.
Key specifications for SW-12401 DWG E-34873: Furnished Items and Quantity: 1 HANDWHEEL; Inlet Relationship with Outlet: IDENTICAL; Nominal Pipe Size Accommodated: 0.500 INCHES IN; Maximum Operating Temp and Media for Which Designed: 100.0 FAHRENHEIT WATER-OIL-GAS DEGF. 16 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.