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PartsTable / COMPONENT / 25473N PIECE 4
25473N PIECE 4 ✓ 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: COPPER ALLOY OVERALL, flange_diameter: 0.690 INCHES NOMINAL IN, body_inside_diameter: 0.225 INCHES NOMINAL IN, body_outside_diameter: 0.500 INCHES NOMINAL IN, seating_surface_shape: FLAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-121-1939, 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
25473N PIECE 4
NSN: 4820-01-121-1939
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flange_diameter0.690 INCHES NOMINAL IN
body_inside_diameter0.225 INCHES NOMINAL IN
body_outside_diameter0.500 INCHES NOMINAL IN
seating_surface_shapeFLAT
NSN4820-01-121-1939
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 25473N PIECE 4 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
SEATING SURFACE SHAPE: FLAT
•
BODY OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.690 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.225 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
SEATING SURFACE SHAPEFLAT
BODY OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
FLANGE DIAMETER0.690 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.225 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
CG2C03-81KInterchangeable
interchangeable cross-reference
interchangeable
666092-107Interchangeable
interchangeable cross-reference
interchangeable
SMC500924-1Interchangeable
interchangeable cross-reference
interchangeable
0960-0055Interchangeable
interchangeable cross-reference
interchangeable
2021-5092-00Interchangeable
interchangeable cross-reference
interchangeable
MA1208ELInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25473N PIECE 4?
25473N PIECE 4 is a SEAT,VALVE.
What parts can replace 25473N PIECE 4?
There are 21 known substitutes for 25473N PIECE 4: CG2C03-81K, 666092-107, SMC500924-1 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25473N PIECE 4?
25473N PIECE 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-121-1939. 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