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Technical Data Sheet
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012577 — MOUNT,SEALING PLATE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

012577: MOUNT,SEALING PLATE.

The MOUNT,SEALING PLATE is a the manufacturer industrial component. Key specifications include end_item_identification: PERISCOPE,TY 8B. This part is cataloged in the U.S.

Government catalog under NSN 2040-01-101-6643, 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
012577
NSN: 2040-01-101-6643
FSC: 2040 — Marine Hardware and Hull Items
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)
SPECIFICATIONS
end_item_identificationPERISCOPE,TY 8B
NSN2040-01-101-6643
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MOUNT,SEALING PLATE TITLE COMPONENT PN 012577 MFR MOUNT,SEALING PLATE
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONPERISCOPE,TY 8B
OTHER ITEMS IN FSC 2040 — Marine Hardware and Hull Items
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2040-00-003-6975 2040-00-004-4739 2040-00-007-1136 2040-00-008-4790 2040-00-008-4792 2040-00-008-9796 2040-00-008-9797 2040-00-008-9798
SUBSTITUTES & CROSS-REFERENCES 1
685C012577Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 012577?
012577 is a MOUNT,SEALING PLATE.
What parts can replace 012577?
There is 1 known substitute for 012577: 685C012577. Substitute compatibility should be verified for your specific system.
What is the NSN for 012577?
012577 is cataloged in the U.S. Government catalog under NSN 2040-01-101-6643. 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.