The Pipe,exhaust, cataloged under National Stock Number 2990-01-447-6684, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is L-3 Communications Westwood Corporation Dba Mc II Electric Division Div L3 Westwood Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-447-6684 |
| Primary Part Number | 85-33322 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | L-3 Communications Westwood Corporation Dba Mc II Electric Division Div L3 Westwood Corporation |
| Status | ACTIVE |
| End Item Model Number | MEP-012A A |
| End Item Source | 93742 |
| Design Form | PREBENT |
| Wall Thickness | 0.0630 INCHES NOMINAL IN |
| End Item Name | GENERATOR SET,DIESEL ENGINE |
| Nominal Outside Diameter | 5.000 INCHES IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 85-33322 PRIMARY | L-3 Communications Westwood Corporation Dba Mc II Electric Division Div L3 Westwood Corporation (USA) |
| Reference | Meaning |
|---|---|
| 85-33322 | 5/9 Secondary reference Cummins Power Systems, Llc Dba Cummins |
NSN 2990-01-447-6684 is a Pipe,exhaust, manufactured by L-3 Communications Westwood Corporation Dba Mc II Electric Division Div L3 Westwood Corporation, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-447-6684 has 1 manufacturer part number on file: 85-33322 (L-3 Communications Westwood Corporation Dba Mc II Electric Division Div L3 Westwood Corporation).
Key specifications for 85-33322: End Item Model Number: MEP-012A A; End Item Source: 93742; Design Form: PREBENT; Wall Thickness: 0.0630 INCHES NOMINAL IN. 7 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.