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78A1 — LENS,LIGHT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

78A1: LENS,LIGHT.

The LENS,LIGHT is a the manufacturer industrial component. Key specifications include material: GLASS LENS, thread_length: 0.375 INCHES NOMINAL IN, overall_length: 0.750 INCHES NOMINAL IN, mounting_method: THREAD, overall_diameter: 1.125 INCHES NOMINAL IN, special_features: 1.000-27 THREAD MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 6210-00-643-3898, 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
78A1
NSN: 6210-00-643-3898
FSC: 6210 — Indoor and Outdoor Electric Lighting Fixtures
CAGE: 71744 — CHICAGO MINIATURE LIGHTING LLC DBA CHICAGO MINIATURE OPTOELECTRON (USA)
SPECIFICATIONS
materialGLASS LENS
thread_length0.375 INCHES NOMINAL IN
overall_length0.750 INCHES NOMINAL IN
mounting_methodTHREAD
overall_diameter1.125 INCHES NOMINAL IN
special_features1.000-27 THREAD MOUNTING
thread_directionRIGHT-HAND
surface_conditionSMOOTH BACK
holder_surface_treatmentNICKEL
mounting_device_quantity1
NSN6210-00-643-3898
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LENS,LIGHT TITLE COMPONENT PN 78A1 MFR LENS,LIGHT
KEY FEATURES
•
OVERALL DIAMETER: 1.125 INCHES NOMINAL IN
•
MOUNTING METHOD: THREAD
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
HOLDER SURFACE TREATMENT: NICKEL
•
SURFACE CONDITION: SMOOTH FACE
•
MOUNTING DEVICE QUANTITY: 1
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.125 INCHES NOMINAL IN
MOUNTING METHODTHREAD
THREAD LENGTH0.375 INCHES NOMINAL IN
HOLDER SURFACE TREATMENTNICKEL
OVERALL LENGTH0.750 INCHES NOMINAL IN
SURFACE CONDITIONSMOOTH FACE
SURFACE CONDITIONSMOOTH BACK
MOUNTING DEVICE QUANTITY1
THREAD DIRECTIONRIGHT-HAND
COLORBLACK HOLDER
OTHER ITEMS IN FSC 6210 — Indoor and Outdoor Electric Lighting Fixtures
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6210-00-000-0172 6210-00-001-1334 6210-00-001-1421 6210-00-001-1422 6210-00-001-1423 6210-00-001-1424 6210-00-001-1425 6210-00-001-1426
SUBSTITUTES & CROSS-REFERENCES 1
B73-81393Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 78A1?
78A1 is a LENS,LIGHT.
What parts can replace 78A1?
There is 1 known substitute for 78A1: B73-81393. Substitute compatibility should be verified for your specific system.
What is the NSN for 78A1?
78A1 is cataloged in the U.S. Government catalog under NSN 6210-00-643-3898. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.