The Muffler,exhaust, cataloged under National Stock Number 2990-01-491-0226, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-491-0226 |
| Primary Part Number | 13502915 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Inlet Outside Diameter | 1.500 INCHES NOMINAL SINGLE INLET IN |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Overall Diameter | 7.180 INCHES NOMINAL IN |
| Inlet Projection Length | 6.000 INCHES NOMINAL SINGLE INLET IN |
| Outlet Outside Diameter | 1.500 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Body Shape | ROUND |
| Surface Treatment | ALUMINUM ALLOY |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Projection Length | 4.380 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Outlet Location | LOCATED ON SIDE OF BODY WITH AN ELBOW GOING AWAY FROM INLET END, 6.380 IN. FROM CENTER OF BODY TO CENTER OF PIPE. 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 |
|---|---|
| 13502915 PRIMARY | Us Army Aviation and Missile Command (USA) |
| TS15JPL4913014 | Phillips and Temro Industries Inc E M Products Div (USA) |
NSN 2990-01-491-0226 is a Muffler,exhaust, manufactured by Us Army Aviation and Missile Command, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-491-0226 has 2 manufacturer part numbers on file: 13502915 (Us Army Aviation and Missile Command), TS15JPL4913014 (Phillips and Temro Industries Inc E M Products Div).
Key specifications for 13502915: Inlet Outside Diameter: 1.500 INCHES NOMINAL SINGLE INLET IN; Inlet Location: CENTRALLY LOCATED IN END SECTION OF BODY; Overall Diameter: 7.180 INCHES NOMINAL IN; Inlet Projection Length: 6.000 INCHES NOMINAL SINGLE INLET 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.