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Technical Data Sheet
PartsTable / COMPONENT / NAR-OPT
NAR-OPT ✓ 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 EXTENDER CARD,ELECTRONIC TEST is a the manufacturer industrial component. Key specifications include cord_handle: PROVIDED, carrying_case: NOT PROVIDED, lens_zero_aperture: NOT INCLUDED, part_name_assigned_by_controlling_agency: OPHTHALMOSCOPE COMPACT DURABLE DUSTPROOF 2.5 V HALOGEN BULB V. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6540-01-491-6651, 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
NAR-OPT
NSN: 6540-01-491-6651
FSC: 6540
CAGE: 06ST7 — NORTH AMERICAN RESCUE, LLC (USA)
SPECIFICATIONS
cord_handlePROVIDED
carrying_caseNOT PROVIDED
lens_zero_apertureNOT INCLUDED
part_name_assigned_by_controlling_agencyOPHTHALMOSCOPE COMPACT DURABLE DUSTPROOF 2.5 V HALOGEN BULB V
NSN6540-01-491-6651
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available EXTENDER CARD,ELECTRONIC TEST TITLE COMPONENT PN NAR-OPT MFR EXTENDER CARD,ELECTRON
KEY FEATURES
•
LENS ZERO APERTURE: NOT INCLUDED
•
CORD HANDLE: PROVIDED
•
CARRYING CASE: NOT PROVIDED
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESCOMPACT, DURABLE, DUSTPROOF, 2.5 V HALOGEN BULB PRODUCES A BRIGHT, WHITE LIGTH; PRECISION OPTICAL SYSTEM ENSURES A BRILLANT IMAGE; 4 DIFFERENT APERATURES:LARGE SPOT, SMALL SPOT, HALF MOON AND RED FREE FILTER; HANDLE INCORPORATES A STRONG POCKET CLIP WITH ON/OFF SWITCH; PERMANENT ANTI-REFLEX COATINGS TO REDUCE GLARE; HIGH CONTRAST INTERFERENCE RED FREE FILTER; AVAILABLE IN BLACK V
PART NAME ASSIGNED BY CONTROLLING AGENCYOPHTHALMOSCOPE COMPACT DURABLE DUSTPROOF 2.5 V HALOGEN BULB V
LENS ZERO APERTURENOT INCLUDED
CORD HANDLEPROVIDED
CARRYING CASENOT PROVIDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
0-10546Interchangeable
interchangeable cross-reference
interchangeable
0915771Interchangeable
interchangeable cross-reference
interchangeable
02261-0284-22Interchangeable
interchangeable cross-reference
interchangeable
18026Interchangeable
interchangeable cross-reference
interchangeable
200007Interchangeable
interchangeable cross-reference
interchangeable
60244-90158Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAR-OPT?
NAR-OPT is a EXTENDER CARD,ELECTRONIC TEST.
What parts can replace NAR-OPT?
There are 15 known substitutes for NAR-OPT: 0-10546, 0915771, 02261-0284-22 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAR-OPT?
NAR-OPT is cataloged in the Federal Logistics Information System (FLIS) under NSN 6540-01-491-6651. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026