PartsTable
Technical Data Sheet
5221-325 ✓ Verified by PartsTable
· GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: COPPER ALLOY AND RUBBER SYNTHETIC FLOW CONTROL DEVICE, bonnet_type: INSIDE SPRING, connection_type: THREADED EXTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) FIRST END, style_designator: ANGLE, thread_direction: RIGHT-HAND FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-585-8566, 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
5221-325
NSN: 4820-00-585-8566
FSC: 4820
CAGE: 28193 — HENRY TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY AND RUBBER SYNTHETIC FLOW CONTROL DEVICE
bonnet_typeINSIDE SPRING
connection_typeTHREADED EXTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) FIRST END
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
features_providedVALVE STEM LOCK SHIELD
operating_pressure350.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size0.250 INCHES FIRST END IN
maximum_operating_temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4820-00-585-8566
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 5221-325 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES FIRST END IN
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
MATERIAL: COPPER ALLOY STEM
MAXIMUM OPERATING TEMP: 200.0 FAHRENHEIT SINGLE RESPONSE DEGF
VALVE OPERATION METHOD: AUTOMATIC
OPENING PRESSURE SETTING: 325.0 POUNDS PER SQUARE INCH LBS
DISK LOADING METHOD: SPRING
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
MATERIALCOPPER ALLOY STEM
MATERIALSTEEL SEAT
MAXIMUM OPERATING TEMP200.0 FAHRENHEIT SINGLE RESPONSE DEGF
VALVE OPERATION METHODAUTOMATIC
OPENING PRESSURE SETTING325.0 POUNDS PER SQUARE INCH LBS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
BONNET TYPEINSIDE SPRING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
5521Interchangeable
interchangeable cross-reference
interchangeable
166D2Interchangeable
interchangeable cross-reference
interchangeable
BT5521Interchangeable
interchangeable cross-reference
interchangeable
04603Interchangeable
interchangeable cross-reference
interchangeable
251DCInterchangeable
interchangeable cross-reference
interchangeable
1001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5221-325?
5221-325 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace 5221-325?
There are 24 known substitutes for 5221-325: 5521, 166D2, BT5521 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5221-325?
5221-325 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-585-8566. This indicates validated use in U.S. government and defense supply chains.
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