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Technical Data Sheet
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D-6521 — D-6521

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

D-6521: D-6521.

The D-6521 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4330-01-454-4664, 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
D-6521
NSN: 4330-01-454-4664
FSC: 4330 — Centrifugals, Separators, and Pressure and Vacuum Filters
CAGE: 08832 — SCHROEDER INDUSTRIES LLC (USA)
SPECIFICATIONS
Part NumberD-6521
NSN4330-01-454-4664
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available D-6521 TITLE COMPONENT PN D-6521 MFR D-6521
KEY FEATURES
•
FIRST DISCHARGE CONNECTION TYPE: THREADED EXTERNAL PIPE BOTTOM
•
MOUNTING HOLE QUANTITY: 3
•
FILTRATION RATING IN MICRONS: 10.2 ABSOLUTE
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 5.250 INCHES NOMINAL IN
•
FIRST INTAKE NOMINAL THREAD SIZE: 1.000 INCHES IN
•
DROP PRESSURE: ERR-060
•
FIRST INTAKE THREAD SERIES DESIGNATOR: NPTF
•
DESIGN TYPE: REUSABLE
TECHNICAL CHARACTERISTICS
FIRST DISCHARGE CONNECTION TYPETHREADED EXTERNAL PIPE BOTTOM
MOUNTING HOLE QUANTITY3
FILTRATION RATING IN MICRONS10.2 ABSOLUTE
DISTANCE BETWEEN MOUNTING HOLE CENTERS5.250 INCHES NOMINAL IN
FIRST INTAKE NOMINAL THREAD SIZE1.000 INCHES IN
DROP PRESSUREERR-060
FIRST INTAKE THREAD SERIES DESIGNATORNPTF
DESIGN TYPEREUSABLE
BODY OUTSIDE DIAMETER5.250 INCHES NOMINAL IN
TEMP RATING225.0 FAHRENHEIT MAXIMUM DEGF
SUBSTITUTES & CROSS-REFERENCES 1
ZT-8ZS7-P-ES1 WReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 D-6521?
D-6521 is a D-6521.
What parts can replace D-6521?
There is 1 known substitute for D-6521: ZT-8ZS7-P-ES1 W. Substitute compatibility should be verified for your specific system.
What is the NSN for D-6521?
D-6521 is cataloged in the U.S. Government catalog under NSN 4330-01-454-4664. This indicates validated use in U.S. government and defense supply chains.
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