The Disk,valve, cataloged under National Stock Number 4820-01-032-6954, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Vickers and Associates Llc Dba Vickers & Associates Llc Div Vickers & Associates Llc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-032-6954 |
| Primary Part Number | 840185 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Vickers and Associates Llc Dba Vickers & Associates Llc Div Vickers & Associates Llc |
| Status | ACTIVE |
| Outside Diameter | 2.750 INCHES NOMINAL IN |
| Material Thickness | 0.516 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 840185 PRIMARY | Vickers and Associates Llc Dba Vickers & Associates Llc Div Vickers & Associates Llc (USA) |
| 895013 | Vickers and Associates Llc Dba Vickers & Associates Llc Div Vickers & Associates Llc (USA) |
| Reference | Meaning |
|---|---|
| 840185 | 5/9 Secondary reference David Brown Hydraulics Inc Dba Hydreco |
| 895013PC31 | 5/9 Secondary reference U.S. Government activity |
| 841528 | 5/9 Secondary reference David Brown Hydraulics Inc Dba Hydreco |
| 840185 | C/1 Advisory reference — outside the item-of-supply concept Kidde-Fenwal, Llc |
NSN 4820-01-032-6954 is a Disk,valve, manufactured by Vickers and Associates Llc Dba Vickers & Associates Llc Div Vickers & Associates Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-032-6954 has 2 manufacturer part numbers on file: 840185 (Vickers and Associates Llc Dba Vickers & Associates Llc Div Vickers & Associates Llc), 895013 (Vickers and Associates Llc Dba Vickers & Associates Llc Div Vickers & Associates Llc).
Key specifications for 840185: Outside Diameter: 2.750 INCHES NOMINAL IN; Material Thickness: 0.516 INCHES NOMINAL IN; Special Features: ONE SLOT 1.625 IN. LG,0.219 IN. W,0.438 IN. FROM OD; ONE 0.156 IN. DIA HOLE 0.156 IN. C TO OD IN; Material: STEEL. 3 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.