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944642 — FILTER,LIGHT,OPTICAL INSTRUMENT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

944642: FILTER,LIGHT,OPTICAL INSTRUMENT.

FILTER,LIGHT,OPTICAL INSTRUMENT. Key specifications include material: GLASS SURFACE, overall_diameter: 89.0 MILLIMETERS NOMINAL MM, overall_thickness: 6.0 MILLIMETERS NOMINAL MM, density_variability: NOT VARIABLE, surface_parallelism: 10.0 SECONDS. This part is cataloged in the U.S.

Government catalog under NSN 1240-00-025-0271, 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
944642
NSN: 1240-00-025-0271
FSC: 1240 — Optical Sighting and Ranging Equipment
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialGLASS SURFACE
overall_diameter89.0 MILLIMETERS NOMINAL MM
overall_thickness6.0 MILLIMETERS NOMINAL MM
density_variabilityNOT VARIABLE
surface_parallelism10.0 SECONDS
NSN1240-00-025-0271
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,LIGHT,OPTICAL INSTRUMENT TITLE COMPONENT PN 944642 MFR FILTER,LIGHT,OPTICAL I
KEY FEATURES
•
OVERALL DIAMETER: 89.0 MILLIMETERS NOMINAL MM
•
OVERALL THICKNESS: 6.0 MILLIMETERS NOMINAL MM
•
SURFACE PARALLELISM: 10.0 SECONDS
•
DENSITY VARIABILITY: NOT VARIABLE
•
MATERIAL: GLASS SURFACE
TYPICAL APPLICATIONS
  • Data center switch-to-switch interconnects
  • Server-to-storage fabric connectivity
  • Long-distance fiber optic links
  • High-speed uplink connections (10G/25G/40G/100G)
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER89.0 MILLIMETERS NOMINAL MM
OVERALL THICKNESS6.0 MILLIMETERS NOMINAL MM
SURFACE PARALLELISM10.0 SECONDS
DENSITY VARIABILITYNOT VARIABLE
MATERIALGLASS SURFACE
OTHER ITEMS IN FSC 1240 — Optical Sighting and Ranging Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1240-00-000-0160 1240-00-001-4014 1240-00-001-4015 1240-00-001-4488 1240-00-003-1076 1240-00-003-8404 1240-00-003-8405 1240-00-003-8406
SUBSTITUTES & CROSS-REFERENCES 1
TA3726Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedDemilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 944642?
944642 is a FILTER,LIGHT,OPTICAL INSTRUMENT.
What parts can replace 944642?
There is 1 known substitute for 944642: TA3726. Substitute compatibility should be verified for your specific system.
What is the NSN for 944642?
944642 is cataloged in the U.S. Government catalog under NSN 1240-00-025-0271. 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.