The Pipe,exhaust, cataloged under National Stock Number 2990-01-107-2456, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Komatsu America Corporation. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-107-2456 |
| Primary Part Number | 109278 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Komatsu America Corporation |
| Status | ACTIVE |
| End Item Model Number | 80 |
| End Item Source | 23926 |
| Design Form | PREBENT |
| End Item Name | CRANE |
| Usage Location | EXHAUST PIPE |
| 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 |
|---|---|
| 109278 PRIMARY | Komatsu America Corporation (USA) |
| Reference | Meaning |
|---|---|
| H-109278 | 5/9 Secondary reference Komatsu America Corporation |
NSN 2990-01-107-2456 is a Pipe,exhaust, manufactured by Komatsu America Corporation, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-107-2456 has 1 manufacturer part number on file: 109278 (Komatsu America Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5342-01-315-4551, 5905-01-406-2669. Verify interchangeability with system specifications before substitution.
Key specifications for 109278: End Item Model Number: 80; End Item Source: 23926; Design Form: PREBENT; End Item Name: CRANE. 5 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.