The Disk Locknut,valve, cataloged under National Stock Number 4820-01-067-8265, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Disk Locknut,valve |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (CAGE 76364) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-067-8265 |
| Primary Part Number | 845-1889581 ASSYC 1-1/2IP.PC 17 |
| Item Name | Disk Locknut,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| 845-1889581ASSY C1 1-2IN PC17 | Naval Sea Systems Command (USA) |
| 845-1889581 ASSYC 1-1/2IP.PC 17 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 70300228 | 5/9 Secondary reference The Walworth Company |
| 2620-902X2 | D/9 Drawing number reference only U.S. Government activity |
| 2620-902X2ASSY C1 1-2IN PC17 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-067-8265 is a Disk Locknut,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-067-8265 has 2 manufacturer part numbers on file: 845-1889581ASSY C1 1-2IN PC17 (Naval Sea Systems Command), 845-1889581 ASSYC 1-1/2IP.PC 17 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
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.