The Connector,exhaust Pipe, cataloged under National Stock Number 2990-01-546-6540, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Chemring Sensors and Electronic Systems, Inc. Div Charlotte. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2990-01-546-6540 |
| Primary Part Number | 30295-1288 |
| Item Name | Connector,exhaust Pipe |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Chemring Sensors and Electronic Systems, Inc. Div Charlotte |
| Status | ACTIVE |
| Design Form | PREBENT |
| Bend Angle in Deg | 90.0 |
| Wall Thickness | 0.190 INCHES NOMINAL IN |
| Pipe/tube First End Nominal Outside Diameter | 2.220 INCHES IN |
| Pipe/tube Second End Nominal Outside Diameter | 2.000 INCHES IN |
| Centerline Radius | 1.730 INCHES NOMINAL IN |
| First End Connection Type | UNTHREADED EXTERNAL PIPE/TUBE |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 6061 |
| Nominal Leg Length | 2.750 INCHES IN |
| Second End Connection Type | UNTHREADED INTERNAL PIPE/TUBE |
| Pipe/tube First End Nominal Inside Diameter | 1.810 INCHES 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 |
|---|---|
| 30295-1288 PRIMARY | Chemring Sensors and Electronic Systems, Inc. Div Charlotte (USA) |
| Reference | Meaning |
|---|---|
| 30295-1288 | 5/9 Secondary reference General Dynamics Armament and Technical Products Inc. |
NSN 2990-01-546-6540 is a Connector,exhaust Pipe, manufactured by Chemring Sensors and Electronic Systems, Inc. Div Charlotte, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-546-6540 has 1 manufacturer part number on file: 30295-1288 (Chemring Sensors and Electronic Systems, Inc. Div Charlotte).
Key specifications for 30295-1288: Design Form: PREBENT; Bend Angle in Deg: 90.0; Wall Thickness: 0.190 INCHES NOMINAL IN; Pipe/tube First End Nominal Outside Diameter: 2.220 INCHES IN. 12 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.