The 4551-21-G is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 6685-01-020-5635, 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
4551-21-G
NSN:6685-01-020-5635 FSC:6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments CAGE:41387 — SIEMENS INDUSTRY, INC. DBA SIEMENS ENERGY DIV PROCESS INDUSTRIES AND DRIVES (USA)
SPECIFICATIONS
Part Number
4551-21-G
NSN
6685-01-020-5635
COMPONENT DIAGRAM
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: DOWEL TUBE 2,DIAPHRAGM 6,SPACER 5
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTION
DOWEL TUBE 2,DIAPHRAGM 6,SPACER 5
END ITEM IDENTIFICATION
BOILERS,1200 PSI;MAIN FEED PUMPS; POSEIDON MATERIAL;PROPULSION SYSTEMS
OTHER ITEMS IN FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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FREQUENTLY ASKED QUESTIONS
What is 4551-21-G?
4551-21-G is a 4551-21-G.
What is the NSN for 4551-21-G?
4551-21-G is cataloged in the U.S. Government catalog under NSN 6685-01-020-5635. This indicates validated use in U.S. government and defense supply chains.
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