The Pipe,exhaust, cataloged under National Stock Number 2990-00-244-0399, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Donaldson Company, Inc.. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2990-00-244-0399 |
| Primary Part Number | H00-2097 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Donaldson Company, Inc. |
| Status | ACTIVE |
| Reduced End Length | 0.500 INCHES NOMINAL IN |
| Nominal Overall Length | 35.000 INCHES IN |
| Surface Treatment | ALUMINUM |
| Material | STEEL |
| 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 |
|---|---|
| 9S1267 | Caterpillar Inc Div Caterpillar Defense (USA) |
| H00-2097 PRIMARY | Donaldson Company, Inc. (USA) |
| 0L1-EFH00-0780 | Brighton Cromwell Llc (USA) |
| Reference | Meaning |
|---|---|
| EEH00-0780 | 5/9 Secondary reference Donaldson Company, Inc. |
| 0L1-EFH00-0780 | 5/9 Secondary reference Ar Bee Corp |
NSN 2990-00-244-0399 is a Pipe,exhaust, manufactured by Donaldson Company, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-244-0399 has 3 manufacturer part numbers on file: 9S1267 (Caterpillar Inc Div Caterpillar Defense), H00-2097 (Donaldson Company, Inc.), 0L1-EFH00-0780 (Brighton Cromwell Llc).
Key specifications for H00-2097: Reduced End Length: 0.500 INCHES NOMINAL IN; Nominal Overall Length: 35.000 INCHES IN; Surface Treatment: ALUMINUM; Material: STEEL. 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.