The Joint,flexible Exhaust, cataloged under National Stock Number 2990-01-048-0822, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-048-0822 |
| Primary Part Number | 25238FX |
| Item Name | Joint,flexible Exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| General Characteristics Item Description | 5.031 IN. DIA,4.500 IN. LG O/A,ONE END PLAIN 1.500 IN. TO GROOVE,@BAND STYLE CLAMP W/BOLT FASTENER ON THE OTHER END IN |
| 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 |
|---|---|
| 25238FX PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 64621-A | 5/9 Secondary reference Oshkosh Corp |
| 25238FX | 5/9 Secondary reference Oshkosh Corp |
| 72-500C | 5/9 Secondary reference Dynalex Inc Sub of Ocean Technology Inc an Affil of Zero Corp |
NSN 2990-01-048-0822 is a Joint,flexible Exhaust, manufactured by Oshkosh Defense Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-048-0822 has 1 manufacturer part number on file: 25238FX (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 1730-01-513-0358. Verify interchangeability with system specifications before substitution.
Key specifications for 25238FX: General Characteristics Item Description: 5.031 IN. DIA,4.500 IN. LG O/A,ONE END PLAIN 1.500 IN. TO GROOVE,@BAND STYLE CLAMP W/BOLT FASTENER ON THE OTHER END IN. 1 specification is 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.