The Muffler,exhaust, cataloged under National Stock Number 2990-01-144-6217, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Mcmaster-Carr Supply Company. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-144-6217 |
| Primary Part Number | 9835K44 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Mcmaster-Carr Supply Company |
| Status | ACTIVE |
| Design Type | DRY |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Muffler Design | STRAIGHT THROUGH |
| Inlet Connection Type | THREADED SINGLE INLET |
| Body Shape | ROUND |
| Material | ALUMINUM LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| 9835K44 PRIMARY | Mcmaster-Carr Supply Company (USA) |
| Reference | Meaning |
|---|---|
| 9835K24 | 5/9 Secondary reference Mcmaster-Carr Supply Company |
| BB-3 | 5/9 Secondary reference U.S. Government activity |
NSN 2990-01-144-6217 is a Muffler,exhaust, manufactured by Mcmaster-Carr Supply Company, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-144-6217 has 1 manufacturer part number on file: 9835K44 (Mcmaster-Carr Supply Company).
1 possible match (shared part number, not a government interchangeability claim): 6530-01-690-7931. Verify interchangeability with system specifications before substitution.
Key specifications for 9835K44: Design Type: DRY; Overall Diameter: 1.250 INCHES NOMINAL IN; Overall Length: 3.468 INCHES NOMINAL IN; Muffler Design: STRAIGHT THROUGH. 6 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.