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Technical Data Sheet
PartsTable / COMPONENT / 500-Q
500-Q ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BAR,SELECTOR,TELETYPEWRITER is a the manufacturer industrial component. Key specifications include shape: STRAIGHT, length: 1.375 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: STEEL, base_style: MINI-CAN, bulb_style: T (TUBULAR). This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-242-6218, 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.

WHERE IT FITS
500-Q
NSN: 6240-00-242-6218
FSC: 6240
CAGE: 08108 — LAMP INDUSTRY FOR USE WITH INDUSTRY DESIGNATIONS AND ABBREVIATIONS FOR LAMPS
SPECIFICATIONS
shapeSTRAIGHT
length1.375 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialSTEEL
base_styleMINI-CAN
bulb_styleT (TUBULAR)
mounting_shankINCLUDED
overall_length3.625 INCHES MAXIMUM IN
voltage_rating120.000 VOLTS NOMINAL
wattage_rating500.000 WATTS
bulb_designatorT-4
overall_diameter0.500 INCHES NOMINAL IN
NSN6240-00-242-6218
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BAR,SELECTOR,TELETYPEWRITER TITLE COMPONENT PN 500-Q MFR BAR,SELECTOR,TELETYPEW
KEY FEATURES
•
LIGHT OUTPUT RATING: 10000.000 LUMENS NOMINAL SINGLE RATING
•
BASE STYLE: MINI-CAN
•
BULB DESIGNATOR: T-4
•
AVERAGE LIFE RATING IN HOURS: 2000.0
•
FILAMENT HEAVY DUTY SERVICE RATING: NOT RATED
•
LIGHT CENTER LENGTH: 2.000 INCHES NOMINAL IN
•
WATTAGE RATING: 500.000 WATTS
•
FEATURES PROVIDED: HEAT RESISTANT GLASS
TECHNICAL CHARACTERISTICS (FLIS)
LIGHT OUTPUT RATING10000.000 LUMENS NOMINAL SINGLE RATING
BASE STYLEMINI-CAN
BULB DESIGNATORT-4
AVERAGE LIFE RATING IN HOURS2000.0
FILAMENT HEAVY DUTY SERVICE RATINGNOT RATED
LIGHT CENTER LENGTH2.000 INCHES NOMINAL IN
WATTAGE RATING500.000 WATTS
FEATURES PROVIDEDHEAT RESISTANT GLASS
RATED AVERAGE LIFEHOURS
END ITEM IDENTIFICATIONCOMMUNICATIONS SYSTEMS, AN/WRR-7; LOS ANGELES CLASS SSN (688); SUBMARINE SHIP CONTROL AND NAVIGATION SYSTEMS; SUBMARINE INTERIOR COMMUNICATION SYSTEM; MOORED TRAINING SHIP; STURGEON CLASS SSN (637); SEAWOLF CLASS SSN; SUBMARINE COMMUNICATIONS AND ANTENNA SYSTEMS; SUBMARINE ENGINEERING AND DIESEL SYSTEMS; DIVERS LIFE SUPPORT SYSTEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
127903LAInterchangeable
interchangeable cross-reference
interchangeable
90-4173Interchangeable
interchangeable cross-reference
interchangeable
AA51155B-1A8BInterchangeable
interchangeable cross-reference
interchangeable
736-004862Interchangeable
interchangeable cross-reference
interchangeable
R7M-MInterchangeable
interchangeable cross-reference
interchangeable
1130DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 500-Q?
500-Q is a BAR,SELECTOR,TELETYPEWRITER.
What parts can replace 500-Q?
There are 22 known substitutes for 500-Q: 127903LA, 90-4173, AA51155B-1A8B and 19 more. Substitute compatibility should be verified for your specific system.
Is 500-Q still available?
500-Q is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026