The Connector,exhaust Pipe, cataloged under National Stock Number 2990-01-417-6177, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Ritsema Grinding Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2990-01-417-6177 |
| Primary Part Number | 26-0202-33 |
| Item Name | Connector,exhaust Pipe |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Ritsema Grinding Co |
| Status | ACTIVE |
| Pipe/tube Second End Nominal Inside Diameter | 4.547 INCHES IN |
| Design Form | STRAIGHT |
| Nominal Overall Length | 1.938 INCHES IN |
| First End Connection Type | UNTHREADED EXTERNAL PIPE/TUBE |
| Material | STEEL COMP 304 |
| Second End Connection Type | UNTHREADED EXTERNAL PIPE/TUBE |
| Pipe/tube First End Nominal Inside Diameter | 4.805 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 |
|---|---|
| 26-0202-33 PRIMARY | Ritsema Grinding Co (USA) |
| Reference | Meaning |
|---|---|
| 26-0202-33 | 5/9 Secondary reference Renk America Llc Div Renk America |
NSN 2990-01-417-6177 is a Connector,exhaust Pipe, manufactured by Ritsema Grinding Co, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-417-6177 has 1 manufacturer part number on file: 26-0202-33 (Ritsema Grinding Co).
Key specifications for 26-0202-33: Pipe/tube Second End Nominal Inside Diameter: 4.547 INCHES IN; Design Form: STRAIGHT; Nominal Overall Length: 1.938 INCHES IN; First End Connection Type: UNTHREADED EXTERNAL PIPE/TUBE. 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.