The Valve Overload, cataloged under National Stock Number 4820-01-493-6402, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kalmar Solutions Ab. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-493-6402 |
| Primary Part Number | 478 1551-803 |
| Item Name | Valve Overload |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kalmar Solutions Ab |
| 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 |
|---|---|
| 478 1551-803 PRIMARY | Kalmar Solutions Ab (SWE) |
| Reference | Meaning |
|---|---|
| 478 1551-803 | 3/9 Design control — primary reference Cargotec Sweden Ab - Macgregor Cranes |
| 478 1551-803 TA | C/1 Advisory reference — outside the item-of-supply concept Macgregor Usa Inc. Div Macgregor Usa |
| 478 1551-803 | 5/9 Secondary reference Macgregor Usa Inc. Div Macgregor Usa |
NSN 4820-01-493-6402 is a Valve Overload, manufactured by Kalmar Solutions Ab, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-493-6402 has 1 manufacturer part number on file: 478 1551-803 (Kalmar Solutions Ab).
Key specifications for 478 1551-803: End Item Identification: T-AKR 287 ALOGL SL-7 TYPE FAST SEALIFT SHIP. 0 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.