The Valve,stop-Check, cataloged under National Stock Number 4820-01-287-4845, 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 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-287-4845 |
| Primary Part Number | 1042-001J400 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Furnished Items and Quantity | 1 HANDLE |
| Flange Face Design | PLAIN ALL ENDS |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | OFFSET FLANGED ENDS |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | PACKING RETAINING |
| Mounting Facility | BRACKET(S) |
| Material | COPPER ALLOY BODY |
| 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 |
|---|---|
| 1042-001J400 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 5001HN-0400 4IN | 5/9 Secondary reference U.S. Government activity |
| 5001HN-0400 4IN | C/1 Advisory reference — outside the item-of-supply concept Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
NSN 4820-01-287-4845 is a Valve,stop-Check, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-287-4845 has 1 manufacturer part number on file: 1042-001J400 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
Key specifications for 1042-001J400: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Furnished Items and Quantity: 1 HANDLE; Flange Face Design: PLAIN ALL ENDS. 10 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.