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PartsTable / COMPONENT / 15784 PIECE 11
15784 PIECE 11 ✓ 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 SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, flange_diameter: 0.750 INCHES NOMINAL IN, style_designator: PLAIN FLANGED, seat_angle_in_deg: 37.000 NOMINAL, under_flange_height: 0.188 INCHES NOMINAL IN, body_inside_diameter: 0.500 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 4820-01-102-9757, 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
15784 PIECE 11
NSN: 4820-01-102-9757
FSC: 4820
CAGE: 71342 — IMI CASH VALVE INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
flange_diameter0.750 INCHES NOMINAL IN
style_designatorPLAIN FLANGED
seat_angle_in_deg37.000 NOMINAL
under_flange_height0.188 INCHES NOMINAL IN
body_inside_diameter0.500 INCHES NOMINAL IN
body_outside_diameter0.656 INCHES NOMINAL IN
seating_surface_shapeANGULAR
flange_seat_to_disk_end_height0.125 INCHES NOMINAL IN
NSN4820-01-102-9757
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 15784 PIECE 11 · 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
•
STYLE DESIGNATOR: PLAIN FLANGED
•
MATERIAL: NICKEL ALLOY OVERALL
•
SEATING SURFACE SHAPE: ANGULAR
•
BODY OUTSIDE DIAMETER: 0.656 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
FLANGE SEAT TO DISK END HEIGHT: 0.125 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.750 INCHES NOMINAL IN
•
UNDER FLANGE HEIGHT: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORPLAIN FLANGED
MATERIALNICKEL ALLOY OVERALL
SEATING SURFACE SHAPEANGULAR
BODY OUTSIDE DIAMETER0.656 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.500 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT0.125 INCHES NOMINAL IN
FLANGE DIAMETER0.750 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.188 INCHES NOMINAL IN
SEAT ANGLE IN DEG37.000 NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
13884Interchangeable
interchangeable cross-reference
interchangeable
SS-P-166 TY5Interchangeable
interchangeable cross-reference
interchangeable
SS-P-166Interchangeable
interchangeable cross-reference
interchangeable
3010641-8-8-8-98.00Interchangeable
interchangeable cross-reference
interchangeable
L57MS1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 15784 PIECE 11?
15784 PIECE 11 is a SEAT,VALVE.
What parts can replace 15784 PIECE 11?
There are 5 known substitutes for 15784 PIECE 11: 13884, SS-P-166 TY5, SS-P-166 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 15784 PIECE 11?
15784 PIECE 11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-102-9757. 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