The Pipe,exhaust, cataloged under National Stock Number 2990-00-885-9176, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Maremont Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2990-00-885-9176 |
| Primary Part Number | T6-1231 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Maremont Corp |
| Status | ACTIVE |
| Nominal Overall Length | 73.750 INCHES IN |
| Nominal Outside Diameter | 2.000 INCHES IN |
| 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 |
|---|---|
| T6-1231 | Maremont Corp (USA) |
| Reference | Meaning |
|---|---|
| 61159 | 5/9 Secondary reference U.S. Government activity |
| C1TT5255CF | 3/9 Design control — primary reference Ford Motor Company |
| 6T4886 | 5/2 Secondary reference U.S. Government activity |
| C1TT5255CF | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
NSN 2990-00-885-9176 is a Pipe,exhaust, manufactured by Maremont Corp, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-885-9176 has 1 manufacturer part number on file: T6-1231 (Maremont Corp).
3 possible matches (shared part number, not a government interchangeability claim): 2910-00-977-1083, 5998-01-230-1386, 2530-01-370-8432. Verify interchangeability with system specifications before substitution.
Key specifications for T6-1231: Nominal Overall Length: 73.750 INCHES IN; Nominal Outside Diameter: 2.000 INCHES IN; Material: STEEL. 3 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.