The M3661/54 LC40EN 3 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6210-00-752-2140, indicating validated use in U.S. government and defense logistics supply chains.
Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
| Part Number | M3661/54 LC40EN 3 |
| NSN | 6210-00-752-2140 |
| STYLE DESIGNATOR | STOVEPIPE |
| THREAD QUANTITY | 28 PER INCH |
| COLOR | RED, AVIATION LENS |
| SURFACE CONDITION | FROSTED BACK |
| OVERALL DIAMETER | 1.062 INCHES NOMINAL IN |
| THREAD DIAMETER | 0.875 INCHES IN |
| MOUNTING METHOD | INTERNAL THREAD |
| EFFECTIVE DIAMETER | 0.700 INCHES NOMINAL IN |
| THREAD LENGTH | 0.219 INCHES NOMINAL IN |
| THREAD SERIES | UNS |