The Flange,exhaust Pipe, cataloged under National Stock Number 2990-01-233-1734, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-233-1734 |
| Item Name | Flange,exhaust Pipe |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| Mounting Hole Quantity | 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 01008819 | 5/9 Secondary reference Caterpillar Paving Products Inc |
| 1G9104 | 5/9 Secondary reference Caterpillar Paving Products Inc |
| 01G9104 | 3/9 Design control — primary reference Caterpillar Paving Products Inc |
NSN 2990-01-233-1734 is a Flange,exhaust Pipe, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
Key specifications for 2990-01-233-1734: Mounting Hole Quantity: 2; Special Features: CYLINDRICAL SHAPED;SUPPORT MTD ON DIAMOND SHAPED FLANGE; End Item Identification: 3895-01-193-4078. 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.