The Fuse,hydraulic System, cataloged under National Stock Number 2590-01-355-8446, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2590-01-355-8446 |
| Primary Part Number | 230000-1 |
| Item Name | Fuse,hydraulic System |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Tube Accommodation Outside Diameter | 0.625 INCHES NOMINAL IN |
| Pressure Rating | 3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS |
| Connection Thread Size | 0.875-14 |
| Connection Port Quantity | 1 AND 2 |
| Reset Button | NOT INCLUDED |
| Overall Diameter | 2.000 INCHES NOMINAL IN |
| Port Connection Type | TUBE FITTING AND GASKET SEAL FEMALE |
| Setting Lever | NOT INCLUDED |
| Connection Facility Thread Class | 2A AND 2B A |
| Operating Temp Range | -55.0 TO 200.0 FAHRENHEIT DEGF |
| Connection Facility Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12553425 | Bae Systems Land & Armaments L.p. (USA) |
| 230000-1 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| 12553425 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 12553425 | 7/2 Vendor item drawing reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| 70718 | 5/9 Secondary reference U.S. Government activity |
| 230000-1 | 5/9 Secondary reference Curtiss-Wright Controls Integrated Sensing, Inc. Dba Predator Systems |
| 1111065-001 | 5/2 Secondary reference U.S. Government activity |
NSN 2590-01-355-8446 is a Fuse,hydraulic System, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-355-8446 has 3 manufacturer part numbers on file: 12553425 (Bae Systems Land & Armaments L.p.), 230000-1 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 12553425 (Amz Alabama Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-370-1158, 4820-01-606-1787, 4720-01-665-8448. Verify interchangeability with system specifications before substitution.
Key specifications for 230000-1: Tube Accommodation Outside Diameter: 0.625 INCHES NOMINAL IN; Pressure Rating: 3000.000 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Connection Thread Size: 0.875-14; Connection Port Quantity: 1 AND 2. 11 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.
NSN 2590-01-355-8446 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.