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B21146 — MOUNTING

✓ Government record, cited
LITTON SYSTEMS INC ITEK OPTICAL SYSTEMS DIV · COMPONENT
PRODUCT OVERVIEW

B21146: MOUNTING.

The MOUNTING is a LITTON SYSTEMS INC ITEK OPTICAL SYSTEMS DIV industrial component. This part is cataloged in the U.S. Government catalog under NSN 6605-00-394-8898, 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
B21146
NSN: 6605-00-394-8898
FSC: 6605 — Navigational Instruments
CAGE: 92208 — LITTON SYSTEMS INC ITEK OPTICAL SYSTEMS DIV (USA)
SPECIFICATIONS
Part NumberB21146
ManufacturerLITTON SYSTEMS INC ITEK OPTICAL SYSTEMS DIV
NSN6605-00-394-8898
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: LITTON SYSTEMS INC ITEK OPTICAL SYSTEMS DIV MOUNTING TITLE COMPONENT PN B21146 MFR LITTON SYSTEMS INC ITEK OPTICAL SYSTEMS DIV MOUNTING
SUBSTITUTES & CROSS-REFERENCES 4
979-1B145Reference document
Same NSN cross-reference
Reference document — Secondary reference
A62369Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
R10454Reference document
Same NSN cross-reference
Reference document — Secondary reference
62369Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is B21146?
B21146 is a MOUNTING manufactured by LITTON SYSTEMS INC ITEK OPTICAL SYSTEMS DIV.
What parts can replace B21146?
There are 4 known substitutes for B21146: 979-1B145, A62369, R10454 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B21146?
B21146 is cataloged in the U.S. Government catalog under NSN 6605-00-394-8898. 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.