The Disk,valve, cataloged under National Stock Number 4820-01-154-5459, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-154-5459 |
| Primary Part Number | 84459-J-940 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Shank Diameter | 0.372 INCHES NOMINAL IN |
| Flange Diameter | 2.500 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Material | COPPER ALLOY AND RUBBER |
| 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 |
|---|---|
| 2BA508 | Oshkosh Defense Llc (USA) |
| M502-2001GR | Miltope Corporation (USA) |
| 84459-J-940 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 84459-J | 5/9 Secondary reference Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| 2BA508 | 5/9 Secondary reference Oshkosh Corp |
NSN 4820-01-154-5459 is a Disk,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-154-5459 has 3 manufacturer part numbers on file: 2BA508 (Oshkosh Defense Llc), M502-2001GR (Miltope Corporation), 84459-J-940 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
Key specifications for 84459-J-940: Shank Diameter: 0.372 INCHES NOMINAL IN; Flange Diameter: 2.500 INCHES NOMINAL IN; Overall Height: 2.028 INCHES NOMINAL IN; Style Designator: POPPET. 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.