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Technical Data Sheet
PartsTable / COMPONENT / N8211G6Y/MM-1 ITEM 5
N8211G6Y/MM-1 ITEM 5 ✓ 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 N8211G6Y/MM-1 ITEM 5 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-251-1556, 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
N8211G6Y/MM-1 ITEM 5
NSN: 4820-00-251-1556
FSC: 4820
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
Part NumberN8211G6Y/MM-1 ITEM 5
NSN4820-00-251-1556
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: N8211G6Y/MM-1 ITEM 5 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.031 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OR PLASTIC OVERALL
•
SEATING SURFACE SHAPE: ANGULAR
•
STYLE DESIGNATOR: PLAIN FLANGED
•
SEAT ANGLE IN DEG: 37.000 NOMINAL
•
BODY INSIDE DIAMETER: 0.250 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.688 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE SEAT TO DISK END HEIGHT0.031 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OR PLASTIC OVERALL
SEATING SURFACE SHAPEANGULAR
SPECIAL FEATURESW/PLASTIC SEAT INSERT
STYLE DESIGNATORPLAIN FLANGED
SEAT ANGLE IN DEG37.000 NOMINAL
BODY INSIDE DIAMETER0.250 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.688 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.468 INCHES NOMINAL IN
FLANGE DIAMETER0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
6502-3109198ITEMInterchangeable
interchangeable cross-reference
interchangeable
6502-3109195PCSYInterchangeable
interchangeable cross-reference
interchangeable
800271Interchangeable
interchangeable cross-reference
interchangeable
2TA51FS500Interchangeable
interchangeable cross-reference
interchangeable
F20J500Interchangeable
interchangeable cross-reference
interchangeable
SPD80027-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N8211G6Y/MM-1 ITEM 5?
N8211G6Y/MM-1 ITEM 5 is a N8211G6Y/MM-1 ITEM 5.
What parts can replace N8211G6Y/MM-1 ITEM 5?
There are 11 known substitutes for N8211G6Y/MM-1 ITEM 5: 6502-3109198ITEM, 6502-3109195PCSY, 800271 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N8211G6Y/MM-1 ITEM 5?
N8211G6Y/MM-1 ITEM 5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-251-1556. 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