The Muffler,exhaust, cataloged under National Stock Number 2990-00-775-3863, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-00-775-3863 |
| Primary Part Number | LCM8S4103H1387534PCE1 |
| Item Name | Muffler,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Body Shape | ROUND |
| Inlet Projection Length | 3.000 INCHES NOMINAL SINGLE INLET IN |
| Inlet Connection Type | FLANGE SINGLE INLET |
| Inlet Flange Mounting Provision and Quantity | 8 HOLES SINGLE INLET |
| Outlet Flange Mounting Hole Diameter | 0.469 INCHES NOMINAL FIRST OUTLET IN |
| Inlet Location | CENTRALLY LOCATED ON END OF BODY |
| Muffler Design | BAFFLE |
| Operating Position | UNIVERSAL |
| Inlet Flange Mounting Hole Diameter | 0.469 INCHES NOMINAL SINGLE INLET IN |
| Center to Center Distance Between Mounting Holes | EQUALLY SPACED ON A BOLT CIRCLE OF 7.000 IN. SINGLE INLET IN |
| Outlet Projection Length | 3.000 INCHES NOMINAL FIRST OUTLET IN |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Connection Type | FLANGE FIRST OUTLET |
| Coolant Type | AIR |
| Outlet Flange Shape | ROUND FIRST OUTLET |
| Unable to Decode | UNABLE TO DECODE |
| Tube Quantity | 1 |
| Outlet Flange Mounting Provision Spacing | EQUALLY SPACED ON A BOLT CIRCLE OF 7.000 IN. IN |
| Inlet Flange Shape | ROUND SINGLE INLET |
| Overall Diameter | 10.459 INCHES NOMINAL IN |
| Outlet Flange Mounting Provision and Quantity | 8 HOLES FIRST OUTLET |
| Outlet Location | CENTRALLY LOCATED ON END OF BODY |
| Design Type | DRY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| LCM8S4103H1387534PCE1 PRIMARY | Naval Sea Systems Command (USA) |
| LCM8S4103H1387534PCE1 | Naval Ship Systems Command (USA) |
| 1024SW5 | Donaldson Co Inc Kittell Div (USA) |
| 11809 | Beaird Industries Inc. (USA) |
NSN 2990-00-775-3863 is a Muffler,exhaust, manufactured by Naval Sea Systems Command, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-00-775-3863 has 4 cross-referenced part numbers: LCM8S4103H1387534PCE1 (Naval Sea Systems Command), LCM8S4103H1387534PCE1 (Naval Ship Systems Command), 1024SW5 (Donaldson Co Inc Kittell Div), 11809 (Beaird Industries Inc.).
There are 8 known substitutes for 2990-00-775-3863: 5905-00-321-8368, 2520-00-499-8364, 3110-00-872-3354 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for LCM8S4103H1387534PCE1: Body Shape: ROUND; Inlet Projection Length: 3.000 INCHES NOMINAL SINGLE INLET IN; Inlet Connection Type: FLANGE SINGLE INLET; Inlet Flange Mounting Provision and Quantity: 8 HOLES SINGLE INLET. 24 total characteristics are documented in the Federal Logistics Information System.