The Muffler,exhaust, cataloged under National Stock Number 2990-01-123-5797, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-123-5797 |
| Primary Part Number | 21925 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Walker Mfg Co |
| Status | ACTIVE |
| Body Shape | ROUND |
| Outlet Connection Type | UNTHREADED FIRST OUTLET |
| Coolant Type | AIR |
| Inlet Connection Type | UNTHREADED SINGLE INLET |
| Design Type | DRY |
| Overall Diameter | 7.000 INCHES NOMINAL IN |
| Inlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Outlet Outside Diameter | 2.500 INCHES NOMINAL FIRST OUTLET IN |
| Outlet Projection Length | 2.500 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Projection Length | 2.750 INCHES NOMINAL SINGLE INLET IN |
| Outlet Location | CENTRALLY LOCATED IN END SECTION OF BODY |
| Operating Position | HORIZONTAL |
| Inlet Outside Diameter | 2.250 INCHES NOMINAL SINGLE INLET IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| D5TZ5230-CL | Ford Motor Co Ford Parts and Service Div Government Part Sales (USA) |
| D4TZ5230-L | Ford Motor Co Ford Parts and Service Div Government Part Sales (USA) |
| 21925 | Tld Wollard Llc (USA) |
| 21925 PRIMARY | Walker Mfg Co (USA) |
| D5TZ5230-CL | Ford Motor Company (USA) |
| D4TZ5230-L | Ford Motor Company (USA) |
NSN 2990-01-123-5797 is a Muffler,exhaust, manufactured by Walker Mfg Co, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-01-123-5797 has 6 cross-referenced part numbers: D5TZ5230-CL (Ford Motor Co Ford Parts and Service Div Government Part Sales), D4TZ5230-L (Ford Motor Co Ford Parts and Service Div Government Part Sales), 21925 (Tld Wollard Llc), 21925 (Walker Mfg Co), D5TZ5230-CL (Ford Motor Company) and 1 more.
There are 9 known substitutes for 2990-01-123-5797: 1650-00-020-0619, 5360-00-349-7155, 6130-00-769-3850 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21925: Overall Length: 27.000 INCHES NOMINAL IN; Body Shape: ROUND; Outlet Connection Type: UNTHREADED FIRST OUTLET; Coolant Type: AIR. 14 total characteristics are documented in the Federal Logistics Information System.