The Pipe,exhaust, cataloged under National Stock Number 2990-01-049-9100, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Stemco Inc Sub of Coltec Industries Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-049-9100 |
| Primary Part Number | 221-0131 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Stemco Inc Sub of Coltec Industries Inc |
| Status | ACTIVE |
| End Item Model Number | 2500 |
| End Item Source | 10988 |
| 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 |
|---|---|
| 221-0131 PRIMARY | Stemco Inc Sub of Coltec Industries Inc (USA) |
| S086755 | Cnh Industrial America Llc Dba Cnh America (USA) |
| S86755 | Cnh Industrial America Llc Dba Cnh America (USA) |
| Reference | Meaning |
|---|---|
| 21-10131 | 5/9 Secondary reference Stemco Inc Sub of Coltec Industries Inc |
NSN 2990-01-049-9100 is a Pipe,exhaust, manufactured by Stemco Inc Sub of Coltec Industries Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-049-9100 has 3 manufacturer part numbers on file: 221-0131 (Stemco Inc Sub of Coltec Industries Inc), S086755 (Cnh Industrial America Llc Dba Cnh America), S86755 (Cnh Industrial America Llc Dba Cnh America).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-527-0219. Verify interchangeability with system specifications before substitution.
Key specifications for 221-0131: End Item Model Number: 2500; End Item Source: 10988; 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.