The Support,retractable,semitrailer, cataloged under National Stock Number 2590-01-499-5437, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3). Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-01-499-5437 |
| Primary Part Number | 50890088 |
| Item Name | Support,retractable,semitrailer |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3) |
| Status | ACTIVE |
| Operational Direction | VERTICAL |
| Leg Construction | SQUARE BAR |
| Retracting Mechanism | NOT INCLUDED |
| Operating Control Type | AUTOMATIC |
| 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 |
|---|---|
| 50890088 PRIMARY | Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3) (USA) |
| 50890078 | Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3) (USA) |
| Reference | Meaning |
|---|---|
| 50890078 | 3/9 Design control — primary reference Fontaine Fifth Wheel Company |
NSN 2590-01-499-5437 is a Support,retractable,semitrailer, manufactured by Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3), classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-499-5437 has 2 manufacturer part numbers on file: 50890088 (Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3)), 50890078 (Fontaine Commercial Trailer, Inc. Dba Mht Floor Technologies (3dgr3)).
Key specifications for 50890088: Operational Direction: VERTICAL; Leg Construction: SQUARE BAR; Retracting Mechanism: NOT INCLUDED; Operating Control Type: AUTOMATIC. 4 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.