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5612978 — WINDOW,OPTICAL INSTRUMENT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

5612978: WINDOW,OPTICAL INSTRUMENT.

The WINDOW,OPTICAL INSTRUMENT is a the manufacturer optical transceiver module designed for high-speed data center interconnects. Key specifications include material: GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED, special_features: EYEPIECE ASSEMBLY CONSISTS OF FIND ITEMS 1 - 14., polished_periphery: NOT PROVIDED, end_item_identification: FC33 ELECT AND ELECTRONIC ADAPTER PN 5612561; PERISCOPE. This part is cataloged in the U.S.

Government catalog under NSN 1240-01-498-3538, 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
5612978
NSN: 1240-01-498-3538
FSC: 1240 — Optical Sighting and Ranging Equipment
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialGLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED
special_featuresEYEPIECE ASSEMBLY CONSISTS OF FIND ITEMS 1 - 14.
polished_peripheryNOT PROVIDED
end_item_identificationFC33 ELECT AND ELECTRONIC ADAPTER PN 5612561; PERISCOPE
NSN1240-01-498-3538
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available WINDOW,OPTICAL INSTRUMENT TITLE COMPONENT PN 5612978 MFR WINDOW,OPTICAL INSTRUM
KEY FEATURES
•
POLISHED PERIPHERY: NOT PROVIDED
•
MATERIAL: GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED
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
POLISHED PERIPHERYNOT PROVIDED
SPECIAL FEATURESEYEPIECE ASSEMBLY CONSISTS OF FIND ITEMS 1 - 14.
END ITEM IDENTIFICATIONFC33 ELECT AND ELECTRONIC ADAPTER PN 5612561; PERISCOPE
MATERIALGLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 5612978?
5612978 is a WINDOW,OPTICAL INSTRUMENT.
What is the NSN for 5612978?
5612978 is cataloged in the U.S. Government catalog under NSN 1240-01-498-3538. 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.