The Valve,safety Relief, cataloged under National Stock Number 4820-01-487-5123, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kalmar Solutions Ab. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-487-5123 |
| Primary Part Number | 2877724-801 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kalmar Solutions Ab |
| Status | ACTIVE |
| Operating Pressure | 400.0 BAR MAXIMUM SINGLE RESPONSE |
| Valve Discharge Flow Rate | 40.0 LITERS PER MINUTE |
| 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 |
|---|---|
| 2877724-801 PRIMARY | Kalmar Solutions Ab (SWE) |
| Reference | Meaning |
|---|---|
| 2877724-801 | 3/9 Design control — primary reference Cargotec Sweden Ab - Macgregor Cranes |
| 2877724-801 | 5/9 Secondary reference Macgregor Usa Inc. Div Macgregor Usa |
NSN 4820-01-487-5123 is a Valve,safety Relief, manufactured by Kalmar Solutions Ab, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-487-5123 has 1 manufacturer part number on file: 2877724-801 (Kalmar Solutions Ab).
Key specifications for 2877724-801: Operating Pressure: 400.0 BAR MAXIMUM SINGLE RESPONSE; Special Features: SUPPLIER DESCRIBES THIS AS A VALVE BLOCK WITH CARTRIDGE VALVES.; End Item Identification: CRANE HOUSE, SLAVE; MACGREGOR CRANE; Valve Discharge Flow Rate: 40.0 LITERS PER MINUTE. 2 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.