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A11654 ✓ 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 special_features: FIRST SCALE DIRECTION LEFT TO RIGHT,RANGE 0 TO 30,SINGLE SCALE DIRECTION LEFT TO RIGHT,RANGE 0 TO 60. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-446-3374, 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
A11654
NSN: 4820-00-446-3374
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
special_featuresFIRST SCALE DIRECTION LEFT TO RIGHT,RANGE 0 TO 30,SINGLE SCALE DIRECTION LEFT TO RIGHT,RANGE 0 TO 60
NSN4820-00-446-3374
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A11654 · 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: THREADED FLANGED
•
THREAD SERIES DESIGNATOR: UNS SINGLE THREADED PORTION
•
BODY STEPPED INSIDE DIAMETER: 2.000 INCHES NOMINAL SECOND STEP IN
•
THREAD CLASS: 2A SINGLE THREADED PORTION A
•
FLANGE SEAT TO DISK END HEIGHT: 0.500 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 14 SINGLE THREADED PORTION
•
NOMINAL THREAD SIZE: 2.750 INCHES SINGLE THREADED PORTION IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORTHREADED FLANGED
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
BODY STEPPED INSIDE DIAMETER2.000 INCHES NOMINAL SECOND STEP IN
THREAD CLASS2A SINGLE THREADED PORTION A
FLANGE SEAT TO DISK END HEIGHT0.500 INCHES NOMINAL IN
THREAD QUANTITY PER INCH14 SINGLE THREADED PORTION
NOMINAL THREAD SIZE2.750 INCHES SINGLE THREADED PORTION IN
MATERIALSTEEL CORROSION RESISTING OVERALL
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL IN
SEATING SURFACE SHAPEANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
1165-4Interchangeable
interchangeable cross-reference
interchangeable
B94.9Interchangeable
interchangeable cross-reference
interchangeable
B94.9 3/4-10 UNC HS C H2Interchangeable
interchangeable cross-reference
interchangeable
17219Interchangeable
interchangeable cross-reference
interchangeable
SM-B-187401Interchangeable
interchangeable cross-reference
interchangeable
643LXInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A11654?
A11654 is a SEAT,VALVE.
What parts can replace A11654?
There are 18 known substitutes for A11654: 1165-4, B94.9, B94.9 3/4-10 UNC HS C H2 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A11654?
A11654 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-446-3374. 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