The Valve,gate, cataloged under National Stock Number 4820-01-464-0520, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Walworth Company. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-464-0520 |
| Primary Part Number | W11 .25IPS |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Inlet Relationship with Outlet | IDENTICAL |
| Maximum Operating Temp and Media for Which Designed | 150.0 FAHRENHEIT WATER-OIL-GAS DEGF |
| Operating Pressure and Type | 300.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Stem Type | RISING |
| Connection Type | THREADED INTERNAL PIPE |
| Material Document and Classification | ASTM-B-584-875 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| Material Document and Classification | ASTM-B-62 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM-B-62 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Valve Size | 0.250 INCHES IN |
| Bonnet Type | PACKING RETAINING |
| Pressure Class | ERR-060 |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY STEM |
| Material | COPPER ALLOY SEAT |
| 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 |
|---|---|
| W11 .25IPS PRIMARY | The Walworth Company (USA) |
NSN 4820-01-464-0520 is a Valve,gate, manufactured by The Walworth Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-464-0520 has 1 manufacturer part number on file: W11 .25IPS (The Walworth Company).
Key specifications for W11 .25IPS: Inlet Relationship with Outlet: IDENTICAL; Maximum Operating Temp and Media for Which Designed: 150.0 FAHRENHEIT WATER-OIL-GAS DEGF; Operating Pressure and Type: 300.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS; Stem Type: RISING. 15 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.