The Muffler,exhaust, cataloged under National Stock Number 2990-00-971-5751, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Cummins Filtration Inc.. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2990-00-971-5751 |
| Primary Part Number | T-8486 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Cummins Filtration Inc. |
| Status | CANCELLED |
| Body Shape | ROUND |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Muffler Design | MULTIPASS |
| Inlet Projection Length | 1.250 INCHES NOMINAL SINGLE INLET IN |
| Operating Position | VERTICAL |
| Overall Diameter | 6.500 INCHES NOMINAL IN |
| Outlet Projection Length | 2.375 INCHES NOMINAL FIRST OUTLET IN |
| Baffle Quantity | 1 |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Inlet Location | LOCATED 1.563 IN. C TO C FROM HORIZONTAL CENTER LINE IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Tube Quantity | 2 |
| Outlet Inside Diameter | 1.654 INCHES MINIMUM AND 1.674 INCHES MAXIMUM FIRST OUTLET IN |
| Outlet Location | LOCATED 1.938 IN. C TO C FROM HORIZONTAL CENTER LINE IN |
| Inlet Inside Diameter | 1.905 INCHES MINIMUM AND 1.925 INCHES MAXIMUM SINGLE INLET IN |
| Coolant Type | AIR |
| Design Type | DRY |
| FSC Application Data | ENGINE EXHAUST SYSTEM,NONAIRCRAFT |
| Outlet Outside Diameter | 1.780 INCHES MINIMUM AND 1.800 INCHES MAXIMUM FIRST OUTLET IN |
| Inlet Outside Diameter | 2.031 INCHES MINIMUM AND 2.051 INCHES MAXIMUM SINGLE INLET IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8706 | Cummins Filtration Inc. (USA) |
| 155-824 | Cummins Power Generation Inc. (USA) |
| ABT8486 | Ar Bee Corp (USA) |
| T-8706 | Cummins Filtration Inc. (USA) |
| 8486 | Cummins Filtration Inc. (USA) |
| 155B824 | Cummins Power Generation Inc. (USA) |
| 155-0824 | Cummins Power Generation Inc. (USA) |
| T-8486 PRIMARY | Cummins Filtration Inc. (USA) |
| ABT8706 | Ar Bee Corp (USA) |
| MUF253 | Siemens Energy, Inc. Dba Dresser-Rand (USA) |
| ABT8706 | Brighton Cromwell Llc (USA) |
| ABT8486 | Brighton Cromwell Llc (USA) |
NSN 2990-00-971-5751 is a Muffler,exhaust, manufactured by Cummins Filtration Inc., classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-971-5751 has 12 cross-referenced part numbers: 8706 (Cummins Filtration Inc.), 155-824 (Cummins Power Generation Inc.), ABT8486 (Ar Bee Corp), T-8706 (Cummins Filtration Inc.), 8486 (Cummins Filtration Inc.) and 7 more.
There are 12 known substitutes for 2990-00-971-5751: 5945-00-122-3650, 5975-00-504-7646, 5360-00-664-9187 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for T-8486: Body Shape: ROUND; Outlet Connection Type: UNTHREADED FIRST OUTLET; Muffler Design: MULTIPASS; Inlet Projection Length: 1.250 INCHES NOMINAL SINGLE INLET IN. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-971-5751 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.