The Valve,gate, cataloged under National Stock Number 4820-01-437-7519, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is William E Williams Valve Corp. Government technical data includes 17 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 | 4820-01-437-7519 |
| Primary Part Number | 111F 2.50IN |
| Item Name | Valve,gate |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | William E Williams Valve Corp |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HANDWHEEL |
| Inlet Relationship with Outlet | IDENTICAL |
| Flange Face Design | PLAIN |
| Stem Type | RISING |
| Connection Type | FLANGE, ROUND W/HOLES |
| Valve Size | 2.500 INCHES IN |
| Bonnet Type | INSIDE SCREW |
| Bolt Hole Quantity | 4 |
| Flange Diameter | 7.000 INCHES IN |
| Bonnet Attachment Method | UNION |
| Face to Face Distance | 6.500 INCHES IN |
| Pressure Class | ERR-060 |
| Material | COPPER ALLOY 836 DISK |
| Material | COPPER ALLOY 836 STEM |
| Material | COPPER ALLOY 836 BODY |
| Material | COPPER ALLOY 836 SEAT |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 111F 2.50IN PRIMARY | William E Williams Valve Corp (USA) |
NSN 4820-01-437-7519 is a Valve,gate, manufactured by William E Williams Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-437-7519 has 1 manufacturer part number on file: 111F 2.50IN (William E Williams Valve Corp).
Key specifications for 111F 2.50IN: Furnished Items and Quantity: 1 HANDWHEEL; Inlet Relationship with Outlet: IDENTICAL; Flange Face Design: PLAIN; Stem Type: RISING. 17 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.
NSN 4820-01-437-7519 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.