The Cylinder,hydraulic, cataloged under National Stock Number 2590-01-161-1284, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Hiab Usa Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-01-161-1284 |
| Primary Part Number | 999-9957 |
| Item Name | Cylinder,hydraulic |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Hiab Usa Inc |
| 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 |
|---|---|
| 999-9957 PRIMARY | Hiab Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 999 4998 | 5/9 Secondary reference Hiab Usa Inc |
| 2AW635 | 5/9 Secondary reference Oshkosh Corp |
NSN 2590-01-161-1284 is a Cylinder,hydraulic, manufactured by Hiab Usa Inc, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-161-1284 has 1 manufacturer part number on file: 999-9957 (Hiab Usa Inc).
1 possible match (shared part number, not a government interchangeability claim): 2590-01-161-1285. Verify interchangeability with system specifications before substitution.
Key specifications for 999-9957: End Item Identification: 2320-01-097-0260. 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.