The Cap Assembly,protective,muffler-, cataloged under National Stock Number 2990-00-448-3631, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Department of Defense Project Manager-Mobile Electric Power. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 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 | 2990-00-448-3631 |
| Primary Part Number | 70-4204 |
| Item Name | Cap Assembly,protective,muffler- |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Department of Defense Project Manager-Mobile Electric Power |
| Status | CANCELLED |
| Pipe Outside Diameter Accommodated | 6.620 INCHES IN |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 11021 | Wood John Co Ltd (CAN) |
| 870-616 | Mercury Products Corp (USA) |
| 2870616 | Mercury Products Corp (USA) |
| 04306-0690 | Harsco Corp Bmy-Combat Systems Div (USA) |
| 3R7698 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 70-4204 PRIMARY | Department of Defense Project Manager-Mobile Electric Power (USA) |
| SIZE20 | Gleason Corp Anthes Div (USA) |
| 9125-1026 | Macleod Inc (USA) |
| FB5019 | Mercury Products Corp (USA) |
| 11021 | Gleason Corp Anthes Div (USA) |
NSN 2990-00-448-3631 is a Cap Assembly,protective,muffler-, manufactured by Department of Defense Project Manager-Mobile Electric Power, classified under FSC 2990 (No Item Name Available). Status: cancelled.
NSN 2990-00-448-3631 has 10 cross-referenced part numbers: 11021 (Wood John Co Ltd), 870-616 (Mercury Products Corp), 2870616 (Mercury Products Corp), 04306-0690 (Harsco Corp Bmy-Combat Systems Div), 3R7698 (Caterpillar Inc Div Caterpillar Defense) and 5 more.
There are 12 known substitutes for 2990-00-448-3631: 2530-00-014-6848, 5120-00-234-8744, 4010-00-273-2986 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 70-4204: Pipe Outside Diameter Accommodated: 6.620 INCHES IN; Material: STEEL CORROSION RESISTING. 2 total characteristics are documented in the Federal Logistics Information System.
NSN 2990-00-448-3631 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.