The Piston,disconnect, cataloged under National Stock Number 2590-01-499-5570, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Urdan Industries Usa Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-01-499-5570 |
| Primary Part Number | 5-666-142 |
| Item Name | Piston,disconnect |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Urdan Industries Usa Inc |
| Status | ACTIVE |
| Overall Diameter | 21.6 MILLIMETERS NOMINAL MM |
| Surface Treatment | CHROMIUM |
| 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 |
|---|---|
| 5-666-142 PRIMARY | Urdan Industries Usa Inc (USA) |
NSN 2590-01-499-5570 is a Piston,disconnect, manufactured by Urdan Industries Usa Inc, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-499-5570 has 1 manufacturer part number on file: 5-666-142 (Urdan Industries Usa Inc).
Key specifications for 5-666-142: Overall Diameter: 21.6 MILLIMETERS NOMINAL MM; Overall Length: 29.5 MILLIMETERS NOMINAL MM; Surface Treatment: CHROMIUM; End Item Identification: MINE CLEARING ROLLER SYSTEM. 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.