The Muffler,exhaust-Intake, cataloged under National Stock Number 2990-01-354-9977, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Walker Mfg Co. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-354-9977 |
| Primary Part Number | 21782 |
| Item Name | Muffler,exhaust-Intake |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Walker Mfg Co |
| Status | ACTIVE |
| Outlet Inside Diameter | 2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Inlet Inside Diameter | 2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outlet Connection Type | UNTHREADED LOCATION NOT OTHERWISE SPECIFIED |
| Inlet Location | SIDE INLET |
| Inlet Connection Quantity | 1 |
| Body Shape | RECTANGULAR |
| Outlet Connection Quantity | 1 |
| Inlet Connection Type | UNTHREADED LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Location | CENTER OUTLET |
| Operating Position | HORIZONTAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21782 PRIMARY | Walker Mfg Co (USA) |
| 8983502648 | Kenosha Automotive Plant Sub of American Motors Corp (USA) |
NSN 2990-01-354-9977 is a Muffler,exhaust-Intake, manufactured by Walker Mfg Co, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-01-354-9977 has 2 cross-referenced part numbers: 21782 (Walker Mfg Co), 8983502648 (Kenosha Automotive Plant Sub of American Motors Corp).
There are 7 known substitutes for 2990-01-354-9977: 3455-00-335-3043, 4730-00-712-7999, 3455-00-865-2252 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21782: Outlet Inside Diameter: 2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Overall Length: 25.500 INCHES NOMINAL IN; Inlet Inside Diameter: 2.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN; Outlet Connection Type: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED. 11 total characteristics are documented in the Federal Logistics Information System.