The Fuse,hydraulic System, cataloged under National Stock Number 4820-01-497-7658, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Div Hydraulic Accumulator Division. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-497-7658 |
| Primary Part Number | AB44S225 ITEM 30 |
| Item Name | Fuse,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Div Hydraulic Accumulator Division |
| Status | ACTIVE |
| Pressure Rating | 3.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Operating Temp Range | -5.0 TO 5.0 FAHRENHEIT DEGF |
| 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 |
|---|---|
| AB44S225 ITEM 30 PRIMARY | Parker-Hannifin Corporation Div Hydraulic Accumulator Division (USA) |
| SKC401381 | Parker-Hannifin Corporation Div Hydraulic Accumulator Division (USA) |
| Reference | Meaning |
|---|---|
| AB44S225 | D/9 Drawing number reference only Parker-Hannifin Corporation Div Hydraulic Accumulator Division |
NSN 4820-01-497-7658 is a Fuse,hydraulic System, manufactured by Parker-Hannifin Corporation Div Hydraulic Accumulator Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-497-7658 has 2 manufacturer part numbers on file: AB44S225 ITEM 30 (Parker-Hannifin Corporation Div Hydraulic Accumulator Division), SKC401381 (Parker-Hannifin Corporation Div Hydraulic Accumulator Division).
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-497-7663, 4820-01-497-7667, 4820-01-498-0276. Verify interchangeability with system specifications before substitution.
Key specifications for AB44S225 ITEM 30: Pressure Rating: 3.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Operating Temp Range: -5.0 TO 5.0 FAHRENHEIT DEGF; End Item Identification: 11 GALLON 3.000 PSI BLADDER ACCUMULATOR. 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.