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186309PC217 — Technical Data Sheet

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— · 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, flange_diameter: 1.719 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, seat_angle_in_deg: 45.000 NOMINAL, under_flange_height: 0.750 INCHES NOMINAL IN, body_inside_diameter: 0.656 INCHES NOMINAL 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 4820-00-420-3141, 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
186309PC217
NSN: 4820-00-420-3141
FSC: 4820
CAGE: 830Q4 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS-WRIGHT STEAM AND AIR SOLUTIONS DIV STEAM AND AIR SOLUTIONS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flange_diameter1.719 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
seat_angle_in_deg45.000 NOMINAL
under_flange_height0.750 INCHES NOMINAL IN
body_inside_diameter0.656 INCHES NOMINAL IN
body_outside_diameter1.062 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height1.000 INCHES NOMINAL IN
NSN4820-00-420-3141
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 186309PC217 · 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: 1.000 INCHES NOMINAL IN
•
SEATING SURFACE SHAPE: ANGULAR
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: PLAIN FLANGED
•
FLANGE DIAMETER: 1.719 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.656 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.750 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE SEAT TO DISK END HEIGHT1.000 INCHES NOMINAL IN
SEATING SURFACE SHAPEANGULAR
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORPLAIN FLANGED
FLANGE DIAMETER1.719 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.656 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.750 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.062 INCHES NOMINAL IN
SEAT ANGLE IN DEG45.000 NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
186297PC217Interchangeable
Same NIIN cross-reference
interchangeable
187688PC217Interchangeable
Same NIIN cross-reference
interchangeable
189128PC217Interchangeable
Same NIIN cross-reference
interchangeable
166293-217Interchangeable
Same NIIN cross-reference
interchangeable
186290PC217Interchangeable
Same NIIN cross-reference
interchangeable
188081APC217Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 186309PC217?
186309PC217 is a SEAT,VALVE.
What parts can replace 186309PC217?
There are 8 known substitutes for 186309PC217: 186297PC217, 187688PC217, 189128PC217 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 186309PC217?
186309PC217 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-420-3141. 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: August 2026