The L.1557 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-722-6467, 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 | L.1557 |
| NSN | 6240-00-722-6467 |
| FILAMENT HEAVY DUTY SERVICE RATING | NOT RATED |
| RATED AVERAGE LIFE | HOURS |
| WATTAGE RATING | 0.120 WATTS AND 0.150 WATTS |
| END ITEM IDENTIFICATION | NIMITZ CLASS CVN; FORRESTAL CLASS CV; DEFENSE COMMUNICATIONS RADIO (9 SYSTEMS); VIRGINIA CLASS CGN(41); TELETYPE, MODEL 28; LANDING SYSTEM AUTOMATIC CARRIER, DUAL CHANNEL; SPRUANCE CLASS DD(963); DEEP SUBMERGENCE SYSTEMS PROGRAMS (DSSP); LOS ANGELES CLASS SSN (688); TICONDEROGA CLASS CG (47); AIRCRAFT, TOMCAT F-14; AIRCRAFT, VIKING S-3B; HELICOPTER, MH-53E; HELICOPTER, CARRIER BASED ASW, SH-60F; HELICOPTER, SEARCH AND RESCUE, HH-60H; HELICOPTER, USCG SEARCH & RESCUE, HH-60J |
| BULB LIGHT TRANSMISSION CHARACTERISTIC | TRANSPARENT |
| VOLTAGE RATING | 10.000 VOLTS NOMINAL |
| LIGHT CENTER LENGTH | 0.380 INCHES NOMINAL IN |
| LIGHT OUTPUT RATING | 0.004 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING |
| AVERAGE LIFE RATING IN HOURS | 50000.0 |
| FILAMENT DESIGNATION | C-2F |