The Isolator,torsional, cataloged under National Stock Number 2590-01-554-1091, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Deere & Co. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Isolator,torsional |
| FSC / FSG | 2590 — Miscellaneous Vehicular Components (FSG 25) |
| Manufacturers | Rdo Equipment Rdo Equipment Pty Ltd (CAGE ZB955); Rdo Equipment Pty Ltd (CAGE Z16Z0); Deere & Co (CAGE 75160) |
| Parameter | Value |
|---|---|
| NSN | 2590-01-554-1091 |
| Primary Part Number | AT199018 |
| Item Name | Isolator,torsional |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Deere & Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| AT199018 | Rdo Equipment Rdo Equipment Pty Ltd (AUS) |
| AT199018 | Rdo Equipment Pty Ltd (AUS) |
| AT199018 PRIMARY | Deere & Co (USA) |
| Reference | Meaning |
|---|---|
| AT199018 | 5/9 Secondary reference Rdo Equipment Pty Ltd |
| AT199018 | 5/9 Secondary reference Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery |
NSN 2590-01-554-1091 is a Isolator,torsional, manufactured by Deere & Co, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-554-1091 has 3 manufacturer part numbers on file: AT199018 (Rdo Equipment Rdo Equipment Pty Ltd), AT199018 (Rdo Equipment Pty Ltd), AT199018 (Deere & Co).
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.