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B4-21-600 — B4-21-600

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B4-21-600: B4-21-600.

The B4-21-600 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 6680-00-923-5001, 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
B4-21-600
NSN: 6680-00-923-5001
FSC: 6680 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
CAGE: 22375 — FISCHER AND PORTER CO (USA)
SPECIFICATIONS
Part NumberB4-21-600
NSN6680-00-923-5001
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available B4-21-600 TITLE COMPONENT PN B4-21-600 MFR B4-21-600
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: BOROSILICATE GLASS; BEAD GUIDE
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBOROSILICATE GLASS; BEAD GUIDE
END ITEM IDENTIFICATIONFISCHER AND PORTER CO,MASS FLOWMETER,SERIAL NO. 6705A2749C5
SUBSTITUTES & CROSS-REFERENCES 3
4-21-600Reference document
Same NSN cross-reference
Reference document — Secondary reference
9300G002G10Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
9300G002Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B4-21-600?
B4-21-600 is a B4-21-600.
What parts can replace B4-21-600?
There are 3 known substitutes for B4-21-600: 4-21-600, 9300G002G10, 9300G002. Substitute compatibility should be verified for your specific system.
What is the NSN for B4-21-600?
B4-21-600 is cataloged in the U.S. Government catalog under NSN 6680-00-923-5001. This indicates validated use in U.S. government and defense supply chains.
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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.