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PartsTable / COMPONENT / NB25221E-0000 6INCH
NB25221E-0000 6INCH ✓ 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

The VALVE,STOP-CHECK is a the manufacturer industrial component. Key specifications include material: BRONZE BODY, style_designator: STRAIGHT THRU, operating_pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, flow_control_device: DISK, valve_operation_method: MANUAL, end_item_identification: GLOBE VALVE,CHECK STOP,8 INCH IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-331-8670, 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
NB25221E-0000 6INCH
NSN: 4820-01-331-8670
FSC: 4820
CAGE: 38881 — MONTREAL BRONZE LTD DBA LES FONDERIES DE BRONZE MONTR?AL (CAN)
SPECIFICATIONS
materialBRONZE BODY
style_designatorSTRAIGHT THRU
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
valve_operation_methodMANUAL
end_item_identificationGLOBE VALVE,CHECK STOP,8 INCH IN
stem_actuating_end_typeTHREADED INTERNALLY
valve_size_for_which_designed8.000 INCHES IN
valve_type_for_which_designedGLOBE
NSN4820-01-331-8670
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NB25221E-0000 6INCH · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
6285Interchangeable
interchangeable cross-reference
interchangeable
NB25221E-0000Interchangeable
interchangeable cross-reference
interchangeable
NB25221E-0000 3IN PC9Interchangeable
interchangeable cross-reference
interchangeable
NB25221E-0000 PC 6 6INCHInterchangeable
interchangeable cross-reference
interchangeable
NB25221E-0000 PC9 6INCHInterchangeable
interchangeable cross-reference
interchangeable
C548.06Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NB25221E-0000 6INCH?
NB25221E-0000 6INCH is a VALVE,STOP-CHECK.
What parts can replace NB25221E-0000 6INCH?
There are 12 known substitutes for NB25221E-0000 6INCH: 6285, NB25221E-0000, NB25221E-0000 3IN PC9 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NB25221E-0000 6INCH?
NB25221E-0000 6INCH is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-331-8670. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026